149985538 has 16 divisors (see below), whose sum is σ = 227810880. Its totient is φ = 74053296.

The previous prime is 149985499. The next prime is 149985541. The reversal of 149985538 is 835589941.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78883 + ... + 80761.

It is an arithmetic number, because the mean of its divisors is an integer number (14238180).

Almost surely, 2^149985538 is an apocalyptic number.

149985538 is a deficient number, since it is larger than the sum of its proper divisors (77825342).

149985538 is a wasteful number, since it uses less digits than its factorization.

149985538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361.

The product of its digits is 1555200, while the sum is 52.

The square root of 149985538 is about 12246.8582910067. The cubic root of 149985538 is about 531.3122083000.

The spelling of 149985538 in words is "one hundred forty-nine million, nine hundred eighty-five thousand, five hundred thirty-eight".