120505077 has 60 divisors (see below), whose sum is σ = 226058976. Its totient is φ = 62149680.

The previous prime is 120505069. The next prime is 120505103. The reversal of 120505077 is 770505021.

It is not a de Polignac number, because 120505077 - 2³ = 120505069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 120505077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120505057) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 866874 + ... + 867012.

Almost surely, 2^120505077 is an apocalyptic number.

It is an amenable number.

120505077 is a deficient number, since it is larger than the sum of its proper divisors (105553899).

120505077 is an equidigital number, since it uses as much as digits as its factorization.

120505077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 120505077 is about 10977.4804486275. The cubic root of 120505077 is about 493.9334612364.

Subtracting from 120505077 its sum of digits (27), we obtain a triangular number (120505050 = T₁₅₅₂₄).

The spelling of 120505077 in words is "one hundred twenty million, five hundred five thousand, seventy-seven".