153045172 has 24 divisors (see below), whose sum is σ = 314365184. Its totient is φ = 63817632.

The previous prime is 153045143. The next prime is 153045173. The reversal of 153045172 is 271540351.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 153045172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153045173) 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 7 ways as a sum of consecutive naturals, for example, 72828 + ... + 74899.

Almost surely, 2^153045172 is an apocalyptic number.

It is an amenable number.

153045172 is an abundant number, since it is smaller than the sum of its proper divisors (161320012).

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

153045172 is a wasteful number, since it uses less digits than its factorization.

153045172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147775 (or 147773 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 153045172 is about 12371.1427119729. The cubic root of 153045172 is about 534.9007554576.

The spelling of 153045172 in words is "one hundred fifty-three million, forty-five thousand, one hundred seventy-two".