120842451 has 24 divisors (see below), whose sum is σ = 184504320. Its totient is φ = 76003056.

The previous prime is 120842441. The next prime is 120842459. The reversal of 120842451 is 154248021.

120842451 is a `hidden beast` number, since 1 + 208 + 4 + 2 + 451 = 666.

It is not a de Polignac number, because 120842451 - 2⁵ = 120842419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120842459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43630 + ... + 46316.

It is an arithmetic number, because the mean of its divisors is an integer number (7687680).

Almost surely, 2^120842451 is an apocalyptic number.

120842451 is a deficient number, since it is larger than the sum of its proper divisors (63661869).

120842451 is a wasteful number, since it uses less digits than its factorization.

120842451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 120842451 is about 10992.8363491867. The cubic root of 120842451 is about 494.3939813537.

It can be divided in two parts, 12084 and 2451, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 120842451 in words is "one hundred twenty million, eight hundred forty-two thousand, four hundred fifty-one".