654010631 has 4 divisors (see below), whose sum is σ = 671686632. Its totient is φ = 636334632.

The previous prime is 654010583. The next prime is 654010633. The reversal of 654010631 is 136010456.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654010631 is a prime.

It is a super-2 number, since 2×654010631² = 855459810922036322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 654010631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654010633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8837945 + ... + 8838018.

It is an arithmetic number, because the mean of its divisors is an integer number (167921658).

Almost surely, 2^654010631 is an apocalyptic number.

654010631 is a deficient number, since it is larger than the sum of its proper divisors (17676001).

654010631 is a wasteful number, since it uses less digits than its factorization.

654010631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17676000.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 654010631 is about 25573.6315567422. The cubic root of 654010631 is about 868.0170768123.

It can be divided in two parts, 6540 and 10631, that added together give a palindrome (17171).

The spelling of 654010631 in words is "six hundred fifty-four million, ten thousand, six hundred thirty-one".