149469988 has 6 divisors (see below), whose sum is σ = 261572486. Its totient is φ = 74734992.

The previous prime is 149469949. The next prime is 149469989. The reversal of 149469988 is 889964941.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124947684 + 24522304 = 11178^2 + 4952^2 .

It is not an unprimeable number, because it can be changed into a prime (149469989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18683745 + ... + 18683752.

Almost surely, 2^149469988 is an apocalyptic number.

It is an amenable number.

149469988 is a deficient number, since it is larger than the sum of its proper divisors (112102498).

149469988 is a wasteful number, since it uses less digits than its factorization.

149469988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37367501 (or 37367499 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 149469988 is about 12225.7919170907. The cubic root of 149469988 is about 530.7027440758.

The spelling of 149469988 in words is "one hundred forty-nine million, four hundred sixty-nine thousand, nine hundred eighty-eight".