461603631 has 4 divisors (see below), whose sum is σ = 615471512. Its totient is φ = 307735752.

The previous prime is 461603621. The next prime is 461603647. The reversal of 461603631 is 136306164.

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

It is not a de Polignac number, because 461603631 - 2⁵ = 461603599 is a prime.

It is a super-2 number, since 2×461603631² = 426155824304768322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461603621) 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, 76933936 + ... + 76933941.

It is an arithmetic number, because the mean of its divisors is an integer number (153867878).

Almost surely, 2^461603631 is an apocalyptic number.

461603631 is a deficient number, since it is larger than the sum of its proper divisors (153867881).

461603631 is a wasteful number, since it uses less digits than its factorization.

461603631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153867880.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 461603631 is about 21484.9629043198. The cubic root of 461603631 is about 772.8402614945.

Adding to 461603631 its reverse (136306164), we get a palindrome (597909795).

The spelling of 461603631 in words is "four hundred sixty-one million, six hundred three thousand, six hundred thirty-one".