153989795 has 4 divisors (see below), whose sum is σ = 184787760. Its totient is φ = 123191832.

The previous prime is 153989789. The next prime is 153989821. The reversal of 153989795 is 597989351.

153989795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 153989795 - 2⁴ = 153989779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153989795.

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, 15398975 + ... + 15398984.

It is an arithmetic number, because the mean of its divisors is an integer number (46196940).

Almost surely, 2^153989795 is an apocalyptic number.

153989795 is a deficient number, since it is larger than the sum of its proper divisors (30797965).

153989795 is an equidigital number, since it uses as much as digits as its factorization.

153989795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30797964.

The product of its digits is 3061800, while the sum is 56.

The square root of 153989795 is about 12409.2624680115. The cubic root of 153989795 is about 535.9990010284. Note that the first 3 decimals are identical.

The spelling of 153989795 in words is "one hundred fifty-three million, nine hundred eighty-nine thousand, seven hundred ninety-five".