125254369 has 2 divisors, whose sum is σ = 125254370. Its totient is φ = 125254368.

The previous prime is 125254357. The next prime is 125254379. The reversal of 125254369 is 963452521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75481344 + 49773025 = 8688^2 + 7055^2 .

It is an emirp because it is prime and its reverse (963452521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125254369 - 2¹⁵ = 125221601 is a prime.

It is a super-2 number, since 2×125254369² = 31377313907176322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125254309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62627184 + 62627185.

It is an arithmetic number, because the mean of its divisors is an integer number (62627185).

Almost surely, 2^125254369 is an apocalyptic number.

It is an amenable number.

125254369 is a deficient number, since it is larger than the sum of its proper divisors (1).

125254369 is an equidigital number, since it uses as much as digits as its factorization.

125254369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 125254369 is about 11191.7098336224. The cubic root of 125254369 is about 500.3389288692.

The spelling of 125254369 in words is "one hundred twenty-five million, two hundred fifty-four thousand, three hundred sixty-nine".