149579138 has 4 divisors (see below), whose sum is σ = 224368710. Its totient is φ = 74789568.

The previous prime is 149579113. The next prime is 149579147. The reversal of 149579138 is 831975941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110103049 + 39476089 = 10493^2 + 6283^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149579092 and 149579101.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37394783 + ... + 37394786.

Almost surely, 2^149579138 is an apocalyptic number.

149579138 is a deficient number, since it is larger than the sum of its proper divisors (74789572).

149579138 is an equidigital number, since it uses as much as digits as its factorization.

149579138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74789571.

The product of its digits is 272160, while the sum is 47.

The square root of 149579138 is about 12230.2550259592. The cubic root of 149579138 is about 530.8318939938.

The spelling of 149579138 in words is "one hundred forty-nine million, five hundred seventy-nine thousand, one hundred thirty-eight".