153899930 has 8 divisors (see below), whose sum is σ = 277019892. Its totient is φ = 61559968.

The previous prime is 153899927. The next prime is 153899939. The reversal of 153899930 is 39998351.

It can be written as a sum of positive squares in 2 ways, for example, as 138697729 + 15202201 = 11777^2 + 3899^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (153899939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7694987 + ... + 7695006.

Almost surely, 2^153899930 is an apocalyptic number.

153899930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

153899930 is a deficient number, since it is larger than the sum of its proper divisors (123119962).

153899930 is a wasteful number, since it uses less digits than its factorization.

153899930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15390000.

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 153899930 is about 12405.6410555844. The cubic root of 153899930 is about 535.8947150635.

The spelling of 153899930 in words is "one hundred fifty-three million, eight hundred ninety-nine thousand, nine hundred thirty".