120450091 has 4 divisors (see below), whose sum is σ = 120745000. Its totient is φ = 120155184.

The previous prime is 120450089. The next prime is 120450163. The reversal of 120450091 is 190054021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190054021 = 13297 ⋅14293.

It is a cyclic number.

It is not a de Polignac number, because 120450091 - 2¹ = 120450089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120450191) 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, 146841 + ... + 147658.

It is an arithmetic number, because the mean of its divisors is an integer number (30186250).

Almost surely, 2^120450091 is an apocalyptic number.

120450091 is a deficient number, since it is larger than the sum of its proper divisors (294909).

120450091 is an equidigital number, since it uses as much as digits as its factorization.

120450091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294908.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 120450091 is about 10974.9756719548. The cubic root of 120450091 is about 493.8583231650.

The spelling of 120450091 in words is "one hundred twenty million, four hundred fifty thousand, ninety-one".