10631538 has 12 divisors (see below), whose sum is σ = 23035038. Its totient is φ = 3543840.

The previous prime is 10631531. The next prime is 10631549. The reversal of 10631538 is 83513601.

It can be written as a sum of positive squares in only one way, i.e., 9715689 + 915849 = 3117^2 + 957^2 .

It is a super-2 number, since 2×10631538² = 226059200490888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10631531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295303 + ... + 295338.

Almost surely, 2^10631538 is an apocalyptic number.

10631538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10631538 is an abundant number, since it is smaller than the sum of its proper divisors (12403500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10631538 is a wasteful number, since it uses less digits than its factorization.

10631538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590649 (or 590646 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 10631538 is about 3260.6039317893. The cubic root of 10631538 is about 219.8865668677.

It can be divided in two parts, 1063 and 1538, that added together give a square (2601 = 51²).

The spelling of 10631538 in words is "ten million, six hundred thirty-one thousand, five hundred thirty-eight".