91459142 has 4 divisors (see below), whose sum is σ = 137188716. Its totient is φ = 45729570.

The previous prime is 91459139. The next prime is 91459171. The reversal of 91459142 is 24195419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24195419 = 233 ⋅103843.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22864784 + ... + 22864787.

It is an arithmetic number, because the mean of its divisors is an integer number (34297179).

Almost surely, 2^91459142 is an apocalyptic number.

91459142 is a deficient number, since it is larger than the sum of its proper divisors (45729574).

91459142 is a wasteful number, since it uses less digits than its factorization.

91459142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45729573.

The product of its digits is 12960, while the sum is 35.

The square root of 91459142 is about 9563.4273145144. The cubic root of 91459142 is about 450.5493570591.

The spelling of 91459142 in words is "ninety-one million, four hundred fifty-nine thousand, one hundred forty-two".