120185601 has 4 divisors (see below), whose sum is σ = 160247472. Its totient is φ = 80123732.

The previous prime is 120185587. The next prime is 120185617. The reversal of 120185601 is 106581021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 106581021 = 3 ⋅35527007.

It is a cyclic number.

It is not a de Polignac number, because 120185601 - 2¹⁹ = 119661313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120185641) 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, 20030931 + ... + 20030936.

It is an arithmetic number, because the mean of its divisors is an integer number (40061868).

Almost surely, 2^120185601 is an apocalyptic number.

It is an amenable number.

120185601 is a deficient number, since it is larger than the sum of its proper divisors (40061871).

120185601 is an equidigital number, since it uses as much as digits as its factorization.

120185601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40061870.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 120185601 is about 10962.9193648407. The cubic root of 120185601 is about 493.4965791119.

It can be divided in two parts, 120185 and 601, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 120185601 in words is "one hundred twenty million, one hundred eighty-five thousand, six hundred one".