513086631 has 8 divisors (see below), whose sum is σ = 684699504. Its totient is φ = 341765760.

The previous prime is 513086627. The next prime is 513086663. The reversal of 513086631 is 136680315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513086631 - 2² = 513086627 is a prime.

It is a super-2 number, since 2×513086631² = 526515781821860322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513086592 and 513086601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513086681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68866 + ... + 75951.

It is an arithmetic number, because the mean of its divisors is an integer number (85587438).

Almost surely, 2^513086631 is an apocalyptic number.

513086631 is a deficient number, since it is larger than the sum of its proper divisors (171612873).

513086631 is a wasteful number, since it uses less digits than its factorization.

513086631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146001.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 513086631 is about 22651.4156511243. The cubic root of 513086631 is about 800.5655537378.

The spelling of 513086631 in words is "five hundred thirteen million, eighty-six thousand, six hundred thirty-one".