120445491 has 16 divisors (see below), whose sum is σ = 164448000. Its totient is φ = 78389088.

The previous prime is 120445489. The next prime is 120445499. The reversal of 120445491 is 194544021.

It is not a de Polignac number, because 120445491 - 2¹ = 120445489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120445499) 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, 24090 + ... + 28656.

It is an arithmetic number, because the mean of its divisors is an integer number (10278000).

Almost surely, 2^120445491 is an apocalyptic number.

120445491 is a deficient number, since it is larger than the sum of its proper divisors (44002509).

120445491 is a wasteful number, since it uses less digits than its factorization.

120445491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 120445491 is about 10974.7661022912. The cubic root of 120445491 is about 493.8520362534.

The spelling of 120445491 in words is "one hundred twenty million, four hundred forty-five thousand, four hundred ninety-one".