153506730 has 64 divisors (see below), whose sum is σ = 409586688. Its totient is φ = 36564480.

The previous prime is 153506723. The next prime is 153506789. The reversal of 153506730 is 37605351.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5742 + ... + 18438.

It is an arithmetic number, because the mean of its divisors is an integer number (6399792).

Almost surely, 2^153506730 is an apocalyptic number.

153506730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 153506730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204793344).

153506730 is an abundant number, since it is smaller than the sum of its proper divisors (256079958).

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

153506730 is a wasteful number, since it uses less digits than its factorization.

153506730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12751.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 153506730 is about 12389.7832910830. The cubic root of 153506730 is about 535.4379387923.

The spelling of 153506730 in words is "one hundred fifty-three million, five hundred six thousand, seven hundred thirty".