120155001 has 4 divisors (see below), whose sum is σ = 160206672. Its totient is φ = 80103332.

The previous prime is 120154927. The next prime is 120155023. The reversal of 120155001 is 100551021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120155001 - 2¹¹ = 120152953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130155001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20025831 + ... + 20025836.

It is an arithmetic number, because the mean of its divisors is an integer number (40051668).

Almost surely, 2^120155001 is an apocalyptic number.

It is an amenable number.

120155001 is a deficient number, since it is larger than the sum of its proper divisors (40051671).

120155001 is an equidigital number, since it uses as much as digits as its factorization.

120155001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40051670.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 120155001 is about 10961.5236623382. The cubic root of 120155001 is about 493.4546931262.

The spelling of 120155001 in words is "one hundred twenty million, one hundred fifty-five thousand, one".