149831930 has 8 divisors (see below), whose sum is σ = 269697492. Its totient is φ = 59932768.

The previous prime is 149831879. The next prime is 149831947. The reversal of 149831930 is 39138941.

It is a happy number.

149831930 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 2 ways, for example, as 149793121 + 38809 = 12239^2 + 197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7491587 + ... + 7491606.

Almost surely, 2^149831930 is an apocalyptic number.

149831930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149831930 is a deficient number, since it is larger than the sum of its proper divisors (119865562).

149831930 is a wasteful number, since it uses less digits than its factorization.

149831930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14983200.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 149831930 is about 12240.5853618199. The cubic root of 149831930 is about 531.1307648438.

The spelling of 149831930 in words is "one hundred forty-nine million, eight hundred thirty-one thousand, nine hundred thirty".