120428045 has 4 divisors (see below), whose sum is σ = 144513660. Its totient is φ = 96342432.

The previous prime is 120428003. The next prime is 120428059. The reversal of 120428045 is 540824021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41822089 + 78605956 = 6467^2 + 8866^2 .

It is a cyclic number.

It is not a de Polignac number, because 120428045 - 2⁸ = 120427789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12042800 + ... + 12042809.

It is an arithmetic number, because the mean of its divisors is an integer number (36128415).

Almost surely, 2^120428045 is an apocalyptic number.

It is an amenable number.

120428045 is a deficient number, since it is larger than the sum of its proper divisors (24085615).

120428045 is an equidigital number, since it uses as much as digits as its factorization.

120428045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24085614.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 120428045 is about 10973.9712501902. The cubic root of 120428045 is about 493.8281910031.

The spelling of 120428045 in words is "one hundred twenty million, four hundred twenty-eight thousand, forty-five".