91053915 has 16 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 48516192.

The previous prime is 91053901. The next prime is 91053953. The reversal of 91053915 is 51935019.

It is not a de Polignac number, because 91053915 - 2⁸ = 91053659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18816 + ... + 23154.

It is an arithmetic number, because the mean of its divisors is an integer number (9114000).

Almost surely, 2^91053915 is an apocalyptic number.

91053915 is a deficient number, since it is larger than the sum of its proper divisors (54770085).

91053915 is a wasteful number, since it uses less digits than its factorization.

91053915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5746.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 91053915 is about 9542.2175095729. The cubic root of 91053915 is about 449.8829572147.

The spelling of 91053915 in words is "ninety-one million, fifty-three thousand, nine hundred fifteen".