252154997 has 2 divisors, whose sum is σ = 252154998. Its totient is φ = 252154996.

The previous prime is 252154993. The next prime is 252155011. The reversal of 252154997 is 799451252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206037316 + 46117681 = 14354^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 252154997 - 2² = 252154993 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252154993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126077498 + 126077499.

It is an arithmetic number, because the mean of its divisors is an integer number (126077499).

Almost surely, 2^252154997 is an apocalyptic number.

It is an amenable number.

252154997 is a deficient number, since it is larger than the sum of its proper divisors (1).

252154997 is an equidigital number, since it uses as much as digits as its factorization.

252154997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 252154997 is about 15879.3890625553. The cubic root of 252154997 is about 631.7654327996.

The spelling of 252154997 in words is "two hundred fifty-two million, one hundred fifty-four thousand, nine hundred ninety-seven".