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38131253 is a prime number
BaseRepresentation
bin1001000101110…
…1011000110101
32122202021020122
42101131120311
534230200003
63441141325
7642052556
oct221353065
978667218
1038131253
111a584636
121092a845
137b91094
1450c832d
153533238
hex245d635

38131253 has 2 divisors, whose sum is σ = 38131254. Its totient is φ = 38131252.

The previous prime is 38131231. The next prime is 38131267. The reversal of 38131253 is 35213183.

38131253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36881329 + 1249924 = 6073^2 + 1118^2 .

It is an emirp because it is prime and its reverse (35213183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38131253 - 216 = 38065717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38131853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19065626 + 19065627.

It is an arithmetic number, because the mean of its divisors is an integer number (19065627).

Almost surely, 238131253 is an apocalyptic number.

It is an amenable number.

38131253 is a deficient number, since it is larger than the sum of its proper divisors (1).

38131253 is an equidigital number, since it uses as much as digits as its factorization.

38131253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 38131253 is about 6175.0508499931. The cubic root of 38131253 is about 336.5841742577.

The spelling of 38131253 in words is "thirty-eight million, one hundred thirty-one thousand, two hundred fifty-three".