252091123 has 2 divisors, whose sum is σ = 252091124. Its totient is φ = 252091122.

The previous prime is 252091121. The next prime is 252091153. The reversal of 252091123 is 321190252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252091123 - 2¹ = 252091121 is a prime.

It is a super-2 number, since 2×252091123² = 127099868590802258, which contains 22 as substring.

Together with 252091121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (252091121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126045561 + 126045562.

It is an arithmetic number, because the mean of its divisors is an integer number (126045562).

Almost surely, 2^252091123 is an apocalyptic number.

252091123 is a deficient number, since it is larger than the sum of its proper divisors (1).

252091123 is an equidigital number, since it uses as much as digits as its factorization.

252091123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 252091123 is about 15877.3777117004. The cubic root of 252091123 is about 631.7120836115.

The spelling of 252091123 in words is "two hundred fifty-two million, ninety-one thousand, one hundred twenty-three".