103915531 has 2 divisors, whose sum is σ = 103915532. Its totient is φ = 103915530.

The previous prime is 103915501. The next prime is 103915549. The reversal of 103915531 is 135519301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103915531 - 2¹¹ = 103913483 is a prime.

It is a super-2 number, since 2×103915531² = 21596875166023922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103915531.

It is not a weakly prime, because it can be changed into another prime (103915501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51957765 + 51957766.

It is an arithmetic number, because the mean of its divisors is an integer number (51957766).

Almost surely, 2^103915531 is an apocalyptic number.

103915531 is a deficient number, since it is larger than the sum of its proper divisors (1).

103915531 is an equidigital number, since it uses as much as digits as its factorization.

103915531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 103915531 is about 10193.8967524691. The cubic root of 103915531 is about 470.1395858225.

The spelling of 103915531 in words is "one hundred three million, nine hundred fifteen thousand, five hundred thirty-one".