120137242 has 4 divisors (see below), whose sum is σ = 180205866. Its totient is φ = 60068620.

The previous prime is 120137233. The next prime is 120137267. The reversal of 120137242 is 242731021.

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., 106894921 + 13242321 = 10339^2 + 3639^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30034309 + ... + 30034312.

Almost surely, 2^120137242 is an apocalyptic number.

120137242 is a deficient number, since it is larger than the sum of its proper divisors (60068624).

120137242 is an equidigital number, since it uses as much as digits as its factorization.

120137242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60068623.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 120137242 is about 10960.7135716613. The cubic root of 120137242 is about 493.4303809361.

Adding to 120137242 its reverse (242731021), we get a palindrome (362868263).

The spelling of 120137242 in words is "one hundred twenty million, one hundred thirty-seven thousand, two hundred forty-two".