125272739 has 2 divisors, whose sum is σ = 125272740. Its totient is φ = 125272738.

The previous prime is 125272733. The next prime is 125272759. The reversal of 125272739 is 937272521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (937272521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125272739 - 2⁴ = 125272723 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125272733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62636369 + 62636370.

It is an arithmetic number, because the mean of its divisors is an integer number (62636370).

Almost surely, 2^125272739 is an apocalyptic number.

125272739 is a deficient number, since it is larger than the sum of its proper divisors (1).

125272739 is an equidigital number, since it uses as much as digits as its factorization.

125272739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 125272739 is about 11192.5305002935. The cubic root of 125272739 is about 500.3633878346.

The spelling of 125272739 in words is "one hundred twenty-five million, two hundred seventy-two thousand, seven hundred thirty-nine".