155012801 has 16 divisors (see below), whose sum is σ = 168134400. Its totient is φ = 142473408.

The previous prime is 155012797. The next prime is 155012843. The reversal of 155012801 is 108210551.

155012801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155012801 - 2² = 155012797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155012861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184340 + ... + 185178.

It is an arithmetic number, because the mean of its divisors is an integer number (10508400).

Almost surely, 2^155012801 is an apocalyptic number.

It is an amenable number.

155012801 is a deficient number, since it is larger than the sum of its proper divisors (13121599).

155012801 is a wasteful number, since it uses less digits than its factorization.

155012801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 155012801 is about 12450.4136879061. The cubic root of 155012801 is about 537.1833228174.

The spelling of 155012801 in words is "one hundred fifty-five million, twelve thousand, eight hundred one".