15230631 has 16 divisors (see below), whose sum is σ = 22024800. Its totient is φ = 9306240.

The previous prime is 15230629. The next prime is 15230651. The reversal of 15230631 is 13603251.

It is not a de Polignac number, because 15230631 - 2¹ = 15230629 is a prime.

It is a super-2 number, since 2×15230631² = 463944241316322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15230598 and 15230607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15230651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4501 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (1376550).

Almost surely, 2^15230631 is an apocalyptic number.

15230631 is a deficient number, since it is larger than the sum of its proper divisors (6794169).

15230631 is a wasteful number, since it uses less digits than its factorization.

15230631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 15230631 is about 3902.6441036815. The cubic root of 15230631 is about 247.8787507802.

Adding to 15230631 its reverse (13603251), we get a palindrome (28833882).

The spelling of 15230631 in words is "fifteen million, two hundred thirty thousand, six hundred thirty-one".