149191632 has 50 divisors (see below), whose sum is σ = 431807618. Its totient is φ = 49730112.

The previous prime is 149191613. The next prime is 149191663. The reversal of 149191632 is 236191941.

It is a happy number.

149191632 is a `hidden beast` number, since 1 + 4 + 9 + 19 + 1 + 632 = 666.

149191632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 148937616 + 254016 = 12204^2 + 504^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56263 + ... + 58854.

Almost surely, 2^149191632 is an apocalyptic number.

149191632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149191632 is an abundant number, since it is smaller than the sum of its proper divisors (282615986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149191632 is a wasteful number, since it uses less digits than its factorization.

149191632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115137 (or 115122 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 149191632 is about 12214.4026460568. The cubic root of 149191632 is about 530.3730991045.

The spelling of 149191632 in words is "one hundred forty-nine million, one hundred ninety-one thousand, six hundred thirty-two".