125297101 has 2 divisors, whose sum is σ = 125297102. Its totient is φ = 125297100.

The previous prime is 125297093. The next prime is 125297113. The reversal of 125297101 is 101792521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75255625 + 50041476 = 8675^2 + 7074^2 .

It is an emirp because it is prime and its reverse (101792521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125297101 - 2³ = 125297093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125297101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125297171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62648550 + 62648551.

It is an arithmetic number, because the mean of its divisors is an integer number (62648551).

Almost surely, 2^125297101 is an apocalyptic number.

It is an amenable number.

125297101 is a deficient number, since it is larger than the sum of its proper divisors (1).

125297101 is an equidigital number, since it uses as much as digits as its factorization.

125297101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 125297101 is about 11193.6187624914. The cubic root of 125297101 is about 500.3958212351.

The spelling of 125297101 in words is "one hundred twenty-five million, two hundred ninety-seven thousand, one hundred one".