149215316 has 6 divisors (see below), whose sum is σ = 261126810. Its totient is φ = 74607656.

The previous prime is 149215309. The next prime is 149215337. The reversal of 149215316 is 613512941.

It can be written as a sum of positive squares in only one way, i.e., 147525316 + 1690000 = 12146^2 + 1300^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18651911 + ... + 18651918.

It is an arithmetic number, because the mean of its divisors is an integer number (43521135).

Almost surely, 2^149215316 is an apocalyptic number.

It is an amenable number.

149215316 is a deficient number, since it is larger than the sum of its proper divisors (111911494).

149215316 is a wasteful number, since it uses less digits than its factorization.

149215316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37303833 (or 37303831 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 149215316 is about 12215.3721187690. The cubic root of 149215316 is about 530.4011629927.

The spelling of 149215316 in words is "one hundred forty-nine million, two hundred fifteen thousand, three hundred sixteen".