91544152 has 48 divisors (see below), whose sum is σ = 200541960. Its totient is φ = 39062016.

The previous prime is 91544143. The next prime is 91544183. The reversal of 91544152 is 25144519.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135688 + ... + 136360.

Almost surely, 2^91544152 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 91544152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100270980).

91544152 is an abundant number, since it is smaller than the sum of its proper divisors (108997808).

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

91544152 is a wasteful number, since it uses less digits than its factorization.

91544152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1029 counting only the distinct ones).

The product of its digits is 7200, while the sum is 31.

The square root of 91544152 is about 9567.8708185259. The cubic root of 91544152 is about 450.6889069511.

The spelling of 91544152 in words is "ninety-one million, five hundred forty-four thousand, one hundred fifty-two".