120454891 has 8 divisors (see below), whose sum is σ = 123371024. Its totient is φ = 117573120.

The previous prime is 120454861. The next prime is 120454897. The reversal of 120454891 is 198454021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120454891 - 2⁹ = 120454379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120454897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425 + ... + 15586.

It is an arithmetic number, because the mean of its divisors is an integer number (15421378).

Almost surely, 2^120454891 is an apocalyptic number.

120454891 is a deficient number, since it is larger than the sum of its proper divisors (2916133).

120454891 is an equidigital number, since it uses as much as digits as its factorization.

120454891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 120454891 is about 10975.1943490765. The cubic root of 120454891 is about 493.8648832498.

The spelling of 120454891 in words is "one hundred twenty million, four hundred fifty-four thousand, eight hundred ninety-one".