461129957 has 4 divisors (see below), whose sum is σ = 477031020. Its totient is φ = 445228896.

The previous prime is 461129953. The next prime is 461129959. The reversal of 461129957 is 759921164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85119076 + 376010881 = 9226^2 + 19391^2 .

It is a cyclic number.

It is not a de Polignac number, because 461129957 - 2² = 461129953 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 (461129951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7950488 + ... + 7950545.

It is an arithmetic number, because the mean of its divisors is an integer number (119257755).

Almost surely, 2^461129957 is an apocalyptic number.

It is an amenable number.

461129957 is a deficient number, since it is larger than the sum of its proper divisors (15901063).

461129957 is a wasteful number, since it uses less digits than its factorization.

461129957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901062.

The product of its digits is 136080, while the sum is 44.

The square root of 461129957 is about 21473.9366907887. The cubic root of 461129957 is about 772.5758213266.

The spelling of 461129957 in words is "four hundred sixty-one million, one hundred twenty-nine thousand, nine hundred fifty-seven".