120787538 has 4 divisors (see below), whose sum is σ = 181181310. Its totient is φ = 60393768.

The previous prime is 120787529. The next prime is 120787549. The reversal of 120787538 is 835787021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835787021 = 863 ⋅968467.

It can be written as a sum of positive squares in only one way, i.e., 65983129 + 54804409 = 8123^2 + 7403^2 .

It is a super-2 number, since 2×120787538² = 29179258672202888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120787495 and 120787504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30196883 + ... + 30196886.

Almost surely, 2^120787538 is an apocalyptic number.

120787538 is a deficient number, since it is larger than the sum of its proper divisors (60393772).

120787538 is an equidigital number, since it uses as much as digits as its factorization.

120787538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60393771.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 120787538 is about 10990.3383933344. The cubic root of 120787538 is about 494.3190828121.

The spelling of 120787538 in words is "one hundred twenty million, seven hundred eighty-seven thousand, five hundred thirty-eight".