91132501 has 4 divisors (see below), whose sum is σ = 91197792. Its totient is φ = 91067212.

The previous prime is 91132499. The next prime is 91132507. The reversal of 91132501 is 10523119.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10523119 = 17 ⋅619007.

It is a cyclic number.

It is not a de Polignac number, because 91132501 - 2¹ = 91132499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91132507) 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, 30505 + ... + 33358.

It is an arithmetic number, because the mean of its divisors is an integer number (22799448).

Almost surely, 2^91132501 is an apocalyptic number.

It is an amenable number.

91132501 is a deficient number, since it is larger than the sum of its proper divisors (65291).

91132501 is a wasteful number, since it uses less digits than its factorization.

91132501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65290.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 91132501 is about 9546.3344274124. The cubic root of 91132501 is about 450.0123469863.

The spelling of 91132501 in words is "ninety-one million, one hundred thirty-two thousand, five hundred one".