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1279253 is a prime number
BaseRepresentation
bin100111000010100010101
32101222210202
410320110111
5311414003
643230245
713605413
oct4702425
92358722
101279253
117a4138
12518385
1335a371
142542b3
151a4088
hex138515

1279253 has 2 divisors, whose sum is σ = 1279254. Its totient is φ = 1279252.

The previous prime is 1279249. The next prime is 1279303. The reversal of 1279253 is 3529721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770884 + 508369 = 878^2 + 713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1279253 - 22 = 1279249 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 1 + 214 + 77 + 9 + 218 + 52 + 311 .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1279753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639626 + 639627.

It is an arithmetic number, because the mean of its divisors is an integer number (639627).

21279253 is an apocalyptic number.

It is an amenable number.

1279253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279253 is an equidigital number, since it uses as much as digits as its factorization.

1279253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 29.

The square root of 1279253 is about 1131.0406712404. The cubic root of 1279253 is about 108.5555789916. Note that the first 4 decimals are identical.

The spelling of 1279253 in words is "one million, two hundred seventy-nine thousand, two hundred fifty-three".