149867988 has 24 divisors (see below), whose sum is σ = 370262592. Its totient is φ = 47017344.

The previous prime is 149867983. The next prime is 149868011. The reversal of 149867988 is 889768941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149867983) 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, 367120 + ... + 367527.

It is an arithmetic number, because the mean of its divisors is an integer number (15427608).

Almost surely, 2^149867988 is an apocalyptic number.

It is an amenable number.

149867988 is an abundant number, since it is smaller than the sum of its proper divisors (220394604).

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

149867988 is a wasteful number, since it uses less digits than its factorization.

149867988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734671 (or 734669 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 60.

The square root of 149867988 is about 12242.0581602931. The cubic root of 149867988 is about 531.1733680838.

The spelling of 149867988 in words is "one hundred forty-nine million, eight hundred sixty-seven thousand, nine hundred eighty-eight".