125318197 has 2 divisors, whose sum is σ = 125318198. Its totient is φ = 125318196.

The previous prime is 125318173. The next prime is 125318209. The reversal of 125318197 is 791813521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105657841 + 19660356 = 10279^2 + 4434^2 .

It is an emirp because it is prime and its reverse (791813521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125318197 - 2⁷ = 125318069 is a prime.

It is a pancake number, because a pancake can be divided into 125318197 parts by 15831 straight cuts.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125318107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62659098 + 62659099.

It is an arithmetic number, because the mean of its divisors is an integer number (62659099).

Almost surely, 2^125318197 is an apocalyptic number.

It is an amenable number.

125318197 is a deficient number, since it is larger than the sum of its proper divisors (1).

125318197 is an equidigital number, since it uses as much as digits as its factorization.

125318197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 37.

The square root of 125318197 is about 11194.5610454363. The cubic root of 125318197 is about 500.4239031773.

The spelling of 125318197 in words is "one hundred twenty-five million, three hundred eighteen thousand, one hundred ninety-seven".