149473930 has 16 divisors (see below), whose sum is σ = 269212104. Its totient is φ = 59754240.

The previous prime is 149473921. The next prime is 149473937. The reversal of 149473930 is 39374941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 115799121 + 33674809 = 10761^2 + 5803^2 .

It is not an unprimeable number, because it can be changed into a prime (149473937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19534 + ... + 26086.

Almost surely, 2^149473930 is an apocalyptic number.

149473930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149473930 is a deficient number, since it is larger than the sum of its proper divisors (119738174).

149473930 is a wasteful number, since it uses less digits than its factorization.

149473930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 149473930 is about 12225.9531325783. The cubic root of 149473930 is about 530.7074094757.

The spelling of 149473930 in words is "one hundred forty-nine million, four hundred seventy-three thousand, nine hundred thirty".