125130197 has 2 divisors, whose sum is σ = 125130198. Its totient is φ = 125130196.

The previous prime is 125130193. The next prime is 125130221. The reversal of 125130197 is 791031521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123965956 + 1164241 = 11134^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 125130197 - 2² = 125130193 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125130193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62565098 + 62565099.

It is an arithmetic number, because the mean of its divisors is an integer number (62565099).

Almost surely, 2^125130197 is an apocalyptic number.

It is an amenable number.

125130197 is a deficient number, since it is larger than the sum of its proper divisors (1).

125130197 is an equidigital number, since it uses as much as digits as its factorization.

125130197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 125130197 is about 11186.1609589707. The cubic root of 125130197 is about 500.1735357637.

The spelling of 125130197 in words is "one hundred twenty-five million, one hundred thirty thousand, one hundred ninety-seven".