120557042 has 4 divisors (see below), whose sum is σ = 180835566. Its totient is φ = 60278520.

The previous prime is 120557039. The next prime is 120557051. The reversal of 120557042 is 240755021.

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

It can be written as a sum of positive squares in only one way, i.e., 79584241 + 40972801 = 8921^2 + 6401^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30139259 + ... + 30139262.

Almost surely, 2^120557042 is an apocalyptic number.

120557042 is a deficient number, since it is larger than the sum of its proper divisors (60278524).

120557042 is an equidigital number, since it uses as much as digits as its factorization.

120557042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60278523.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 120557042 is about 10979.8470845454. The cubic root of 120557042 is about 494.0044501230.

The spelling of 120557042 in words is "one hundred twenty million, five hundred fifty-seven thousand, forty-two".