91129053 has 4 divisors (see below), whose sum is σ = 121505408. Its totient is φ = 60752700.

The previous prime is 91129033. The next prime is 91129067. The reversal of 91129053 is 35092119.

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: 35092119 = 3 ⋅11697373.

It is not a de Polignac number, because 91129053 - 2⁵ = 91129021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91129053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91129033) 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, 15188173 + ... + 15188178.

It is an arithmetic number, because the mean of its divisors is an integer number (30376352).

Almost surely, 2^91129053 is an apocalyptic number.

It is an amenable number.

91129053 is a deficient number, since it is larger than the sum of its proper divisors (30376355).

91129053 is a wasteful number, since it uses less digits than its factorization.

91129053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30376354.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 91129053 is about 9546.1538328271. The cubic root of 91129053 is about 450.0066715060.

The spelling of 91129053 in words is "ninety-one million, one hundred twenty-nine thousand, fifty-three".