461907261 has 6 divisors (see below), whose sum is σ = 667199390. Its totient is φ = 307938168.

The previous prime is 461907253. The next prime is 461907263. The reversal of 461907261 is 162709164.

It can be written as a sum of positive squares in only one way, i.e., 447322500 + 14584761 = 21150^2 + 3819^2 .

It is not a de Polignac number, because 461907261 - 2³ = 461907253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461907263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25661506 + ... + 25661523.

Almost surely, 2^461907261 is an apocalyptic number.

It is an amenable number.

461907261 is a deficient number, since it is larger than the sum of its proper divisors (205292129).

461907261 is a wasteful number, since it uses less digits than its factorization.

461907261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51323035 (or 51323032 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 461907261 is about 21492.0278475531. The cubic root of 461907261 is about 773.0096752810.

The spelling of 461907261 in words is "four hundred sixty-one million, nine hundred seven thousand, two hundred sixty-one".