149389568 has 72 divisors (see below), whose sum is σ = 313516896. Its totient is φ = 70963200.

The previous prime is 149389567. The next prime is 149389573. The reversal of 149389568 is 865983941.

It is not an unprimeable number, because it can be changed into a prime (149389561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451163 + ... + 451493.

Almost surely, 2^149389568 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 149389568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156758448).

149389568 is an abundant number, since it is smaller than the sum of its proper divisors (164127328).

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

149389568 is an equidigital number, since it uses as much as digits as its factorization.

149389568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 417 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 149389568 is about 12222.5025260787. The cubic root of 149389568 is about 530.6075482178.

The spelling of 149389568 in words is "one hundred forty-nine million, three hundred eighty-nine thousand, five hundred sixty-eight".