103872531 has 32 divisors (see below), whose sum is σ = 166763520. Its totient is φ = 56225664.

The previous prime is 103872481. The next prime is 103872539. The reversal of 103872531 is 135278301.

It is not a de Polignac number, because 103872531 - 2⁹ = 103872019 is a prime.

It is a super-2 number, since 2×103872531² = 21579005392691922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103872539) 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, 51661 + ... + 53633.

It is an arithmetic number, because the mean of its divisors is an integer number (5211360).

Almost surely, 2^103872531 is an apocalyptic number.

103872531 is a deficient number, since it is larger than the sum of its proper divisors (62890989).

103872531 is a wasteful number, since it uses less digits than its factorization.

103872531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 103872531 is about 10191.7874291019. The cubic root of 103872531 is about 470.0747293277.

The spelling of 103872531 in words is "one hundred three million, eight hundred seventy-two thousand, five hundred thirty-one".