91152874 has 4 divisors (see below), whose sum is σ = 136729314. Its totient is φ = 45576436.

The previous prime is 91152871. The next prime is 91152877. The reversal of 91152874 is 47825119.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47825119 = 23 ⋅2079353.

It is an interprime number because it is at equal distance from previous prime (91152871) and next prime (91152877).

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 3861225 = 9343^2 + 1965^2 .

It is not an unprimeable number, because it can be changed into a prime (91152871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22788217 + ... + 22788220.

Almost surely, 2^91152874 is an apocalyptic number.

91152874 is a deficient number, since it is larger than the sum of its proper divisors (45576440).

91152874 is a wasteful number, since it uses less digits than its factorization.

91152874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45576439.

The product of its digits is 20160, while the sum is 37.

The square root of 91152874 is about 9547.4014265663. The cubic root of 91152874 is about 450.0458784500.

The spelling of 91152874 in words is "ninety-one million, one hundred fifty-two thousand, eight hundred seventy-four".