153128891 has 8 divisors (see below), whose sum is σ = 160513584. Its totient is φ = 145918080.

The previous prime is 153128887. The next prime is 153128893. The reversal of 153128891 is 198821351.

153128891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 153128891 - 2² = 153128887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153128893) 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, 41666 + ... + 45191.

It is an arithmetic number, because the mean of its divisors is an integer number (20064198).

Almost surely, 2^153128891 is an apocalyptic number.

153128891 is a deficient number, since it is larger than the sum of its proper divisors (7384693).

153128891 is an equidigital number, since it uses as much as digits as its factorization.

153128891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86941.

The product of its digits is 17280, while the sum is 38.

The square root of 153128891 is about 12374.5258899079. The cubic root of 153128891 is about 534.9982717503.

The spelling of 153128891 in words is "one hundred fifty-three million, one hundred twenty-eight thousand, eight hundred ninety-one".