260131397 has 2 divisors, whose sum is σ = 260131398. Its totient is φ = 260131396.

The previous prime is 260131373. The next prime is 260131409. The reversal of 260131397 is 793131062.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260047876 + 83521 = 16126^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 260131397 - 2⁸ = 260131141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260131307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130065698 + 130065699.

It is an arithmetic number, because the mean of its divisors is an integer number (130065699).

Almost surely, 2^260131397 is an apocalyptic number.

It is an amenable number.

260131397 is a deficient number, since it is larger than the sum of its proper divisors (1).

260131397 is an equidigital number, since it uses as much as digits as its factorization.

260131397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 260131397 is about 16128.5894299533. The cubic root of 260131397 is about 638.3579299733.

The spelling of 260131397 in words is "two hundred sixty million, one hundred thirty-one thousand, three hundred ninety-seven".