126152161 has 4 divisors (see below), whose sum is σ = 127929024. Its totient is φ = 124375300.

The previous prime is 126152141. The next prime is 126152167. The reversal of 126152161 is 161251621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126152161 - 2²³ = 117763553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126152167) 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, 888325 + ... + 888466.

It is an arithmetic number, because the mean of its divisors is an integer number (31982256).

Almost surely, 2^126152161 is an apocalyptic number.

It is an amenable number.

126152161 is a deficient number, since it is larger than the sum of its proper divisors (1776863).

126152161 is an equidigital number, since it uses as much as digits as its factorization.

126152161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776862.

The product of its digits is 720, while the sum is 25.

The square root of 126152161 is about 11231.7479049345. The cubic root of 126152161 is about 501.5315187775.

The spelling of 126152161 in words is "one hundred twenty-six million, one hundred fifty-two thousand, one hundred sixty-one".