260671931 has 12 divisors (see below), whose sum is σ = 298212432. Its totient is φ = 226462848.

The previous prime is 260671927. The next prime is 260671933. The reversal of 260671931 is 139176062.

It is not a de Polignac number, because 260671931 - 2² = 260671927 is a prime.

It is a super-2 number, since 2×260671931² = 135899711222537522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260671891 and 260671900.

It is not an unprimeable number, because it can be changed into a prime (260671933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30935 + ... + 38448.

It is an arithmetic number, because the mean of its divisors is an integer number (24851036).

Almost surely, 2^260671931 is an apocalyptic number.

260671931 is a deficient number, since it is larger than the sum of its proper divisors (37540501).

260671931 is a wasteful number, since it uses less digits than its factorization.

260671931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69430 (or 69413 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 260671931 is about 16145.3377480931. The cubic root of 260671931 is about 638.7997777545.

The spelling of 260671931 in words is "two hundred sixty million, six hundred seventy-one thousand, nine hundred thirty-one".