125137601 has 2 divisors, whose sum is σ = 125137602. Its totient is φ = 125137600.

The previous prime is 125137583. The next prime is 125137627. The reversal of 125137601 is 106731521.

It is an a-pointer prime, because the next prime (125137627) can be obtained adding 125137601 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89794576 + 35343025 = 9476^2 + 5945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125137601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125137631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62568800 + 62568801.

It is an arithmetic number, because the mean of its divisors is an integer number (62568801).

Almost surely, 2^125137601 is an apocalyptic number.

It is an amenable number.

125137601 is a deficient number, since it is larger than the sum of its proper divisors (1).

125137601 is an equidigital number, since it uses as much as digits as its factorization.

125137601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 125137601 is about 11186.4918987143. The cubic root of 125137601 is about 500.1834007201.

The spelling of 125137601 in words is "one hundred twenty-five million, one hundred thirty-seven thousand, six hundred one".