252186469 has 2 divisors, whose sum is σ = 252186470. Its totient is φ = 252186468.

The previous prime is 252186461. The next prime is 252186503. The reversal of 252186469 is 964681252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200562244 + 51624225 = 14162^2 + 7185^2 .

It is a cyclic number.

It is not a de Polignac number, because 252186469 - 2³ = 252186461 is a prime.

It is a super-2 number, since 2×252186469² = 127196030293375922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252186461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126093234 + 126093235.

It is an arithmetic number, because the mean of its divisors is an integer number (126093235).

Almost surely, 2^252186469 is an apocalyptic number.

It is an amenable number.

252186469 is a deficient number, since it is larger than the sum of its proper divisors (1).

252186469 is an equidigital number, since it uses as much as digits as its factorization.

252186469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 252186469 is about 15880.3800017506. The cubic root of 252186469 is about 631.7917157007.

The spelling of 252186469 in words is "two hundred fifty-two million, one hundred eighty-six thousand, four hundred sixty-nine".