38151313 has 2 divisors, whose sum is σ = 38151314. Its totient is φ = 38151312.

The previous prime is 38151307. The next prime is 38151371. The reversal of 38151313 is 31315183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19289664 + 18861649 = 4392^2 + 4343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38151313 is a prime.

It is not a weakly prime, because it can be changed into another prime (38151613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19075656 + 19075657.

It is an arithmetic number, because the mean of its divisors is an integer number (19075657).

Almost surely, 2^38151313 is an apocalyptic number.

It is an amenable number.

38151313 is a deficient number, since it is larger than the sum of its proper divisors (1).

38151313 is an equidigital number, since it uses as much as digits as its factorization.

38151313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 38151313 is about 6176.6749145475. The cubic root of 38151313 is about 336.6431870477.

Adding to 38151313 its reverse (31315183), we get a palindrome (69466496).

The spelling of 38151313 in words is "thirty-eight million, one hundred fifty-one thousand, three hundred thirteen".