103988631 has 4 divisors (see below), whose sum is σ = 138651512. Its totient is φ = 69325752.

The previous prime is 103988629. The next prime is 103988639. The reversal of 103988631 is 136889301.

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

It is not a de Polignac number, because 103988631 - 2¹ = 103988629 is a prime.

It is a super-2 number, since 2×103988631² = 21627270754508322, 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 103988631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103988639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17331436 + ... + 17331441.

It is an arithmetic number, because the mean of its divisors is an integer number (34662878).

Almost surely, 2^103988631 is an apocalyptic number.

103988631 is a deficient number, since it is larger than the sum of its proper divisors (34662881).

103988631 is an equidigital number, since it uses as much as digits as its factorization.

103988631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34662880.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 103988631 is about 10197.4816008660. The cubic root of 103988631 is about 470.2498008145.

The spelling of 103988631 in words is "one hundred three million, nine hundred eighty-eight thousand, six hundred thirty-one".