108943531 has 4 divisors (see below), whose sum is σ = 115351992. Its totient is φ = 102535072.

The previous prime is 108943493. The next prime is 108943537. The reversal of 108943531 is 135349801.

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

It is a cyclic number.

It is not a de Polignac number, because 108943531 - 2⁷ = 108943403 is a prime.

It is a super-2 number, since 2×108943531² = 23737385893495922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108943537) 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, 3204205 + ... + 3204238.

It is an arithmetic number, because the mean of its divisors is an integer number (28837998).

Almost surely, 2^108943531 is an apocalyptic number.

108943531 is a deficient number, since it is larger than the sum of its proper divisors (6408461).

108943531 is an equidigital number, since it uses as much as digits as its factorization.

108943531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408460.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 108943531 is about 10437.6017839349. The cubic root of 108943531 is about 477.6031132452.

The spelling of 108943531 in words is "one hundred eight million, nine hundred forty-three thousand, five hundred thirty-one".