125679397 has 2 divisors, whose sum is σ = 125679398. Its totient is φ = 125679396.

The previous prime is 125679373. The next prime is 125679401. The reversal of 125679397 is 793976521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 47692836 = 8831^2 + 6906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125679397 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125679397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125670397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62839698 + 62839699.

It is an arithmetic number, because the mean of its divisors is an integer number (62839699).

Almost surely, 2^125679397 is an apocalyptic number.

It is an amenable number.

125679397 is a deficient number, since it is larger than the sum of its proper divisors (1).

125679397 is an equidigital number, since it uses as much as digits as its factorization.

125679397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 49.

The square root of 125679397 is about 11210.6822718334. The cubic root of 125679397 is about 500.9042264300.

The spelling of 125679397 in words is "one hundred twenty-five million, six hundred seventy-nine thousand, three hundred ninety-seven".