125423279 has 2 divisors, whose sum is σ = 125423280. Its totient is φ = 125423278.

The previous prime is 125423273. The next prime is 125423299. The reversal of 125423279 is 972324521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125423279 is a prime.

It is a super-2 number, since 2×125423279² = 31461997830223682, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125423273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62711639 + 62711640.

It is an arithmetic number, because the mean of its divisors is an integer number (62711640).

Almost surely, 2^125423279 is an apocalyptic number.

125423279 is a deficient number, since it is larger than the sum of its proper divisors (1).

125423279 is an equidigital number, since it uses as much as digits as its factorization.

125423279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 125423279 is about 11199.2535019081. The cubic root of 125423279 is about 500.5637361642.

The spelling of 125423279 in words is "one hundred twenty-five million, four hundred twenty-three thousand, two hundred seventy-nine".