125142404197 has 2 divisors, whose sum is σ = 125142404198. Its totient is φ = 125142404196.

The previous prime is 125142404129. The next prime is 125142404287. The reversal of 125142404197 is 791404241521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125124205441 + 18198756 = 353729^2 + 4266^2 .

It is a cyclic number.

It is not a de Polignac number, because 125142404197 - 2¹⁹ = 125141879909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125142407197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62571202098 + 62571202099.

It is an arithmetic number, because the mean of its divisors is an integer number (62571202099).

Almost surely, 2^125142404197 is an apocalyptic number.

It is an amenable number.

125142404197 is a deficient number, since it is larger than the sum of its proper divisors (1).

125142404197 is an equidigital number, since it uses as much as digits as its factorization.

125142404197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 125142404197 in words is "one hundred twenty-five billion, one hundred forty-two million, four hundred four thousand, one hundred ninety-seven".