149651188 has 6 divisors (see below), whose sum is σ = 261889586. Its totient is φ = 74825592.

The previous prime is 149651143. The next prime is 149651191. The reversal of 149651188 is 881156941.

It can be written as a sum of positive squares in only one way, i.e., 95804944 + 53846244 = 9788^2 + 7338^2 .

It is a super-2 number, since 2×149651188² = 44790956139622688, which contains 22 as substring.

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, 18706395 + ... + 18706402.

Almost surely, 2^149651188 is an apocalyptic number.

It is an amenable number.

149651188 is a deficient number, since it is larger than the sum of its proper divisors (112238398).

149651188 is a wasteful number, since it uses less digits than its factorization.

149651188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37412801 (or 37412799 counting only the distinct ones).

The product of its digits is 69120, while the sum is 43.

The square root of 149651188 is about 12233.2002354249. The cubic root of 149651188 is about 530.9171115342.

The spelling of 149651188 in words is "one hundred forty-nine million, six hundred fifty-one thousand, one hundred eighty-eight".