125401633 has 12 divisors (see below), whose sum is σ = 146313300. Its totient is φ = 107164512.

The previous prime is 125401607. The next prime is 125401643. The reversal of 125401633 is 336104521.

It can be written as a sum of positive squares in 2 ways, for example, as 34904464 + 90497169 = 5908^2 + 9513^2 .

It is not a de Polignac number, because 125401633 - 2²¹ = 123304481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125401598 and 125401607.

It is not an unprimeable number, because it can be changed into a prime (125401643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13435 + ... + 20767.

It is an arithmetic number, because the mean of its divisors is an integer number (12192775).

Almost surely, 2^125401633 is an apocalyptic number.

It is an amenable number.

125401633 is a deficient number, since it is larger than the sum of its proper divisors (20911667).

125401633 is an equidigital number, since it uses as much as digits as its factorization.

125401633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7696 (or 7689 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 125401633 is about 11198.2870565100. The cubic root of 125401633 is about 500.5349381449.

The spelling of 125401633 in words is "one hundred twenty-five million, four hundred one thousand, six hundred thirty-three".