149552590 has 32 divisors (see below), whose sum is σ = 299925504. Its totient is φ = 53223840.

The previous prime is 149552573. The next prime is 149552593. The reversal of 149552590 is 95255941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149552593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9294 + ... + 19633.

It is an arithmetic number, because the mean of its divisors is an integer number (9372672).

Almost surely, 2^149552590 is an apocalyptic number.

149552590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149552590 is an abundant number, since it is smaller than the sum of its proper divisors (150372914).

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

149552590 is a wasteful number, since it uses less digits than its factorization.

149552590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28992.

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 149552590 is about 12229.1696365698. The cubic root of 149552590 is about 530.8004872992.

The spelling of 149552590 in words is "one hundred forty-nine million, five hundred fifty-two thousand, five hundred ninety".