89151540 has 72 divisors (see below), whose sum is σ = 254171232. Its totient is φ = 23348160.

The previous prime is 89151533. The next prime is 89151563. The reversal of 89151540 is 4515198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269175 + ... + 269505.

It is an arithmetic number, because the mean of its divisors is an integer number (3530156).

Almost surely, 2^89151540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89151540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127085616).

89151540 is an abundant number, since it is smaller than the sum of its proper divisors (165019692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89151540 is a wasteful number, since it uses less digits than its factorization.

89151540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 89151540 is about 9442.0093200547. The cubic root of 89151540 is about 446.7277694187.

The spelling of 89151540 in words is "eighty-nine million, one hundred fifty-one thousand, five hundred forty".