120057778 has 4 divisors (see below), whose sum is σ = 180086670. Its totient is φ = 60028888.

The previous prime is 120057737. The next prime is 120057779. The reversal of 120057778 is 877750021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877750021 = 59 ⋅14877119.

It can be written as a sum of positive squares in only one way, i.e., 112423609 + 7634169 = 10603^2 + 2763^2 .

It is not an unprimeable number, because it can be changed into a prime (120057779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30014443 + ... + 30014446.

Almost surely, 2^120057778 is an apocalyptic number.

120057778 is a deficient number, since it is larger than the sum of its proper divisors (60028892).

120057778 is an equidigital number, since it uses as much as digits as its factorization.

120057778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60028891.

The product of its (nonzero) digits is 27440, while the sum is 37.

The square root of 120057778 is about 10957.0880255659. The cubic root of 120057778 is about 493.3215648317.

The spelling of 120057778 in words is "one hundred twenty million, fifty-seven thousand, seven hundred seventy-eight".