125172097 has 4 divisors (see below), whose sum is σ = 128083120. Its totient is φ = 122261076.

The previous prime is 125172083. The next prime is 125172119. The reversal of 125172097 is 790271521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125172097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125172197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455447 + ... + 1455532.

It is an arithmetic number, because the mean of its divisors is an integer number (32020780).

Almost surely, 2^125172097 is an apocalyptic number.

It is an amenable number.

125172097 is a deficient number, since it is larger than the sum of its proper divisors (2911023).

125172097 is an equidigital number, since it uses as much as digits as its factorization.

125172097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911022.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 125172097 is about 11188.0336520767. The cubic root of 125172097 is about 500.2293574409.

The spelling of 125172097 in words is "one hundred twenty-five million, one hundred seventy-two thousand, ninety-seven".