261046131 has 8 divisors (see below), whose sum is σ = 355467264. Its totient is φ = 170327880.

The previous prime is 261046127. The next prime is 261046157. The reversal of 261046131 is 131640162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 261046131 - 2² = 261046127 is a prime.

It is a super-2 number, since 2×261046131² = 136290165020138322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (261046231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925555 + ... + 925836.

It is an arithmetic number, because the mean of its divisors is an integer number (44433408).

Almost surely, 2^261046131 is an apocalyptic number.

261046131 is a deficient number, since it is larger than the sum of its proper divisors (94421133).

261046131 is a wasteful number, since it uses less digits than its factorization.

261046131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851441.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 261046131 is about 16156.9220769304. The cubic root of 261046131 is about 639.1053017457.

Adding to 261046131 its reverse (131640162), we get a palindrome (392686293).

The spelling of 261046131 in words is "two hundred sixty-one million, forty-six thousand, one hundred thirty-one".