91325403 has 36 divisors (see below), whose sum is σ = 144548040. Its totient is φ = 55531008.

The previous prime is 91325401. The next prime is 91325431. The reversal of 91325403 is 30452319.

91325403 is a `hidden beast` number, since 91 + 32 + 540 + 3 = 666.

It is not a de Polignac number, because 91325403 - 2¹ = 91325401 is a prime.

It is a super-2 number, since 2×91325403² = 16680658466224818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91325401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147228 + ... + 147846.

Almost surely, 2^91325403 is an apocalyptic number.

91325403 is a deficient number, since it is larger than the sum of its proper divisors (53222637).

91325403 is a wasteful number, since it uses less digits than its factorization.

91325403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 91325403 is about 9556.4325456731. The cubic root of 91325403 is about 450.3296399503.

It can be divided in two parts, 9132 and 5403, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 91325403 in words is "ninety-one million, three hundred twenty-five thousand, four hundred three".