654310631 has 4 divisors (see below), whose sum is σ = 704642232. Its totient is φ = 603979032.

The previous prime is 654310621. The next prime is 654310691. The reversal of 654310631 is 136013456.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 654310631 - 2¹⁸ = 654048487 is a prime.

It is a super-2 number, since 2×654310631² = 856244803679236322, 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 = 654310594 and 654310603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654310621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25165781 + ... + 25165806.

It is an arithmetic number, because the mean of its divisors is an integer number (176160558).

Almost surely, 2^654310631 is an apocalyptic number.

654310631 is a deficient number, since it is larger than the sum of its proper divisors (50331601).

654310631 is a wasteful number, since it uses less digits than its factorization.

654310631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50331600.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 654310631 is about 25579.4963007484. The cubic root of 654310631 is about 868.1497786901.

The spelling of 654310631 in words is "six hundred fifty-four million, three hundred ten thousand, six hundred thirty-one".