125123107 has 2 divisors, whose sum is σ = 125123108. Its totient is φ = 125123106.

The previous prime is 125123101. The next prime is 125123137. The reversal of 125123107 is 701321521.

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-125123107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125123101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62561553 + 62561554.

It is an arithmetic number, because the mean of its divisors is an integer number (62561554).

Almost surely, 2^125123107 is an apocalyptic number.

125123107 is a deficient number, since it is larger than the sum of its proper divisors (1).

125123107 is an equidigital number, since it uses as much as digits as its factorization.

125123107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 125123107 is about 11185.8440450419. The cubic root of 125123107 is about 500.1640888105.

Adding to 125123107 its reverse (701321521), we get a palindrome (826444628).

The spelling of 125123107 in words is "one hundred twenty-five million, one hundred twenty-three thousand, one hundred seven".