120553427 has 2 divisors, whose sum is σ = 120553428. Its totient is φ = 120553426.

The previous prime is 120553403. The next prime is 120553469. The reversal of 120553427 is 724355021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120553427 - 2¹⁰ = 120552403 is a prime.

It is a super-2 number, since 2×120553427² = 29066257522888658, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120553427.

It is not a weakly prime, because it can be changed into another prime (120553487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60276713 + 60276714.

It is an arithmetic number, because the mean of its divisors is an integer number (60276714).

Almost surely, 2^120553427 is an apocalyptic number.

120553427 is a deficient number, since it is larger than the sum of its proper divisors (1).

120553427 is an equidigital number, since it uses as much as digits as its factorization.

120553427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 120553427 is about 10979.6824635324. The cubic root of 120553427 is about 493.9995123665. Note that the first 3 decimals are identical.

The spelling of 120553427 in words is "one hundred twenty million, five hundred fifty-three thousand, four hundred twenty-seven".