126402625 has 8 divisors (see below), whose sum is σ = 157750632. Its totient is φ = 101122000.

The previous prime is 126402581. The next prime is 126402629. The reversal of 126402625 is 526204621.

It can be written as a sum of positive squares in 4 ways, for example, as 11505664 + 114896961 = 3392^2 + 10719^2 .

It is not a de Polignac number, because 126402625 - 2¹¹ = 126400577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126402593 and 126402602.

It is not an unprimeable number, because it can be changed into a prime (126402629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505486 + ... + 505735.

It is an arithmetic number, because the mean of its divisors is an integer number (19718829).

Almost surely, 2^126402625 is an apocalyptic number.

It is an amenable number.

126402625 is a deficient number, since it is larger than the sum of its proper divisors (31348007).

126402625 is an equidigital number, since it uses as much as digits as its factorization.

126402625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011236 (or 1011226 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 126402625 is about 11242.8921990740. The cubic root of 126402625 is about 501.8632149027.

The spelling of 126402625 in words is "one hundred twenty-six million, four hundred two thousand, six hundred twenty-five".