120545242 has 4 divisors (see below), whose sum is σ = 180817866. Its totient is φ = 60272620.

The previous prime is 120545233. The next prime is 120545251. The reversal of 120545242 is 242545021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242545021 = 197 ⋅1231193.

It is an interprime number because it is at equal distance from previous prime (120545233) and next prime (120545251).

It can be written as a sum of positive squares in only one way, i.e., 109181601 + 11363641 = 10449^2 + 3371^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30136309 + ... + 30136312.

Almost surely, 2^120545242 is an apocalyptic number.

120545242 is a deficient number, since it is larger than the sum of its proper divisors (60272624).

120545242 is an equidigital number, since it uses as much as digits as its factorization.

120545242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60272623.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 120545242 is about 10979.3097232932. The cubic root of 120545242 is about 493.9883320470.

The spelling of 120545242 in words is "one hundred twenty million, five hundred forty-five thousand, two hundred forty-two".