52145129 has 2 divisors, whose sum is σ = 52145130. Its totient is φ = 52145128.

The previous prime is 52145053. The next prime is 52145147. The reversal of 52145129 is 92154125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 10413529 = 6460^2 + 3227^2 .

It is a cyclic number.

It is not a de Polignac number, because 52145129 - 2²⁰ = 51096553 is a prime.

It is a super-2 number, since 2×52145129² = 5438228956853282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52145029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26072564 + 26072565.

It is an arithmetic number, because the mean of its divisors is an integer number (26072565).

Almost surely, 2^52145129 is an apocalyptic number.

It is an amenable number.

52145129 is a deficient number, since it is larger than the sum of its proper divisors (1).

52145129 is an equidigital number, since it uses as much as digits as its factorization.

52145129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The square root of 52145129 is about 7221.1584250728. The cubic root of 52145129 is about 373.5980339154.

The spelling of 52145129 in words is "fifty-two million, one hundred forty-five thousand, one hundred twenty-nine".