91925133 has 4 divisors (see below), whose sum is σ = 122566848. Its totient is φ = 61283420.

The previous prime is 91925129. The next prime is 91925143. The reversal of 91925133 is 33152919.

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.

It is a cyclic number.

It is not a de Polignac number, because 91925133 - 2² = 91925129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91925094 and 91925103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91925143) 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, 15320853 + ... + 15320858.

It is an arithmetic number, because the mean of its divisors is an integer number (30641712).

Almost surely, 2^91925133 is an apocalyptic number.

It is an amenable number.

91925133 is a deficient number, since it is larger than the sum of its proper divisors (30641715).

91925133 is a wasteful number, since it uses less digits than its factorization.

91925133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30641714.

The product of its digits is 7290, while the sum is 33.

The square root of 91925133 is about 9587.7595401637. The cubic root of 91925133 is about 451.3132550988.

The spelling of 91925133 in words is "ninety-one million, nine hundred twenty-five thousand, one hundred thirty-three".