91732054129 has 3 divisors (see below), whose sum is σ = 91732357003. Its totient is φ = 91731751256.

The previous prime is 91732054123. The next prime is 91732054133. The reversal of 91732054129 is 92145023719.

The square root of 91732054129 is 302873.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 20361863025 + 71370191104 = 142695^2 + 267152^2 .

It is not a de Polignac number, because 91732054129 - 2¹⁵ = 91732021361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91732054123) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 151437 + ... + 454309.

Almost surely, 2^91732054129 is an apocalyptic number.

91732054129 is the 302873-rd square number.

91732054129 is the 151437-th centered octagonal number.

It is an amenable number.

91732054129 is a deficient number, since it is larger than the sum of its proper divisors (302874).

91732054129 is an frugal number, since it uses more digits than its factorization.

91732054129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605746 (or 302873 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 91732054129 in words is "ninety-one billion, seven hundred thirty-two million, fifty-four thousand, one hundred twenty-nine".