125622901 has 2 divisors, whose sum is σ = 125622902. Its totient is φ = 125622900.

The previous prime is 125622821. The next prime is 125622919. The reversal of 125622901 is 109226521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 33942276 = 9575^2 + 5826^2 .

It is an emirp because it is prime and its reverse (109226521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125622901 - 2¹⁷ = 125491829 is a prime.

It is a super-2 number, since 2×125622901² = 31562226511311602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125622901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125622971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62811450 + 62811451.

It is an arithmetic number, because the mean of its divisors is an integer number (62811451).

Almost surely, 2^125622901 is an apocalyptic number.

It is an amenable number.

125622901 is a deficient number, since it is larger than the sum of its proper divisors (1).

125622901 is an equidigital number, since it uses as much as digits as its factorization.

125622901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 125622901 is about 11208.1622490041. The cubic root of 125622901 is about 500.8291588976.

The spelling of 125622901 in words is "one hundred twenty-five million, six hundred twenty-two thousand, nine hundred one".