120411556 has 24 divisors (see below), whose sum is σ = 215744256. Its totient is φ = 58776960.

The previous prime is 120411541. The next prime is 120411559. The reversal of 120411556 is 655114021.

It is a happy number.

It is a super-2 number, since 2×120411556² = 28997885636682272, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 120411556.

It is not an unprimeable number, because it can be changed into a prime (120411559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136236 + ... + 137116.

It is an arithmetic number, because the mean of its divisors is an integer number (8989344).

Almost surely, 2^120411556 is an apocalyptic number.

It is an amenable number.

120411556 is a deficient number, since it is larger than the sum of its proper divisors (95332700).

120411556 is a wasteful number, since it uses less digits than its factorization.

120411556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 120411556 is about 10973.2199467613. The cubic root of 120411556 is about 493.8056516666.

Adding to 120411556 its reverse (655114021), we get a palindrome (775525577).

The spelling of 120411556 in words is "one hundred twenty million, four hundred eleven thousand, five hundred fifty-six".