91465142 has 4 divisors (see below), whose sum is σ = 137197716. Its totient is φ = 45732570.

The previous prime is 91465139. The next prime is 91465177. The reversal of 91465142 is 24156419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24156419 = 7 ⋅3450917.

It is a junction number, because it is equal to n+sod(n) for n = 91465099 and 91465108.

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, 22866284 + ... + 22866287.

It is an arithmetic number, because the mean of its divisors is an integer number (34299429).

Almost surely, 2^91465142 is an apocalyptic number.

91465142 is a deficient number, since it is larger than the sum of its proper divisors (45732574).

91465142 is a wasteful number, since it uses less digits than its factorization.

91465142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45732573.

The product of its digits is 8640, while the sum is 32.

The square root of 91465142 is about 9563.7410044396. The cubic root of 91465142 is about 450.5592093165.

The spelling of 91465142 in words is "ninety-one million, four hundred sixty-five thousand, one hundred forty-two".