108913531 has 8 divisors (see below), whose sum is σ = 113533200. Its totient is φ = 104351520.

The previous prime is 108913499. The next prime is 108913547. The reversal of 108913531 is 135319801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108913531 - 2⁵ = 108913499 is a prime.

It is a super-2 number, since 2×108913531² = 23724314469775922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108913493 and 108913502.

It is not an unprimeable number, because it can be changed into a prime (108913031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10536 + ... + 18133.

It is an arithmetic number, because the mean of its divisors is an integer number (14191650).

Almost surely, 2^108913531 is an apocalyptic number.

108913531 is a deficient number, since it is larger than the sum of its proper divisors (4619669).

108913531 is a wasteful number, since it uses less digits than its factorization.

108913531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28829.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 108913531 is about 10436.1645732520. The cubic root of 108913531 is about 477.5592697094.

The spelling of 108913531 in words is "one hundred eight million, nine hundred thirteen thousand, five hundred thirty-one".