102047631 has 32 divisors (see below), whose sum is σ = 159487488. Its totient is φ = 56833920.

The previous prime is 102047611. The next prime is 102047641. The reversal of 102047631 is 136740201.

It is not a de Polignac number, because 102047631 - 2²³ = 93659023 is a prime.

It is a super-2 number, since 2×102047631² = 20827437985424322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102047611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308136 + ... + 308466.

It is an arithmetic number, because the mean of its divisors is an integer number (4983984).

Almost surely, 2^102047631 is an apocalyptic number.

102047631 is a deficient number, since it is larger than the sum of its proper divisors (57439857).

102047631 is a wasteful number, since it uses less digits than its factorization.

102047631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 102047631 is about 10101.8627490181. The cubic root of 102047631 is about 467.3055895210.

Adding to 102047631 its reverse (136740201), we get a palindrome (238787832).

The spelling of 102047631 in words is "one hundred two million, forty-seven thousand, six hundred thirty-one".