91342131 has 8 divisors (see below), whose sum is σ = 127084800. Its totient is φ = 58247112.

The previous prime is 91342127. The next prime is 91342187. The reversal of 91342131 is 13124319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91342131 - 2² = 91342127 is a prime.

It is a super-2 number, since 2×91342131² = 16686769791242322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91342231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661831 + ... + 661968.

It is an arithmetic number, because the mean of its divisors is an integer number (15885600).

Almost surely, 2^91342131 is an apocalyptic number.

91342131 is a deficient number, since it is larger than the sum of its proper divisors (35742669).

91342131 is a wasteful number, since it uses less digits than its factorization.

91342131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323825.

The product of its digits is 648, while the sum is 24.

The square root of 91342131 is about 9557.3077275978. The cubic root of 91342131 is about 450.3571337767.

The spelling of 91342131 in words is "ninety-one million, three hundred forty-two thousand, one hundred thirty-one".