149194216 has 8 divisors (see below), whose sum is σ = 279739170. Its totient is φ = 74597104.

The previous prime is 149194153. The next prime is 149194223. The reversal of 149194216 is 612491941.

It can be written as a sum of positive squares in only one way, i.e., 84456100 + 64738116 = 9190^2 + 8046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9324631 + ... + 9324646.

Almost surely, 2^149194216 is an apocalyptic number.

It is an amenable number.

149194216 is a deficient number, since it is larger than the sum of its proper divisors (130544954).

149194216 is a wasteful number, since it uses less digits than its factorization.

149194216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18649283 (or 18649279 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 149194216 is about 12214.5084223640. The cubic root of 149194216 is about 530.3761611086.

The spelling of 149194216 in words is "one hundred forty-nine million, one hundred ninety-four thousand, two hundred sixteen".