120745427 has 4 divisors (see below), whose sum is σ = 131722296. Its totient is φ = 109768560.

The previous prime is 120745411. The next prime is 120745433. The reversal of 120745427 is 724547021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120745427 - 2⁴ = 120745411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120745393 and 120745402.

It is not an unprimeable number, because it can be changed into a prime (120745477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5488418 + ... + 5488439.

It is an arithmetic number, because the mean of its divisors is an integer number (32930574).

Almost surely, 2^120745427 is an apocalyptic number.

120745427 is a deficient number, since it is larger than the sum of its proper divisors (10976869).

120745427 is a wasteful number, since it uses less digits than its factorization.

120745427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976868.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 120745427 is about 10988.4224072430. The cubic root of 120745427 is about 494.2616301675.

It can be divided in two parts, 120 and 745427, that added together give a palindrome (745547).

The spelling of 120745427 in words is "one hundred twenty million, seven hundred forty-five thousand, four hundred twenty-seven".