125435633 has 2 divisors, whose sum is σ = 125435634. Its totient is φ = 125435632.

The previous prime is 125435623. The next prime is 125435669. The reversal of 125435633 is 336534521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97377424 + 28058209 = 9868^2 + 5297^2 .

It is an emirp because it is prime and its reverse (336534521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125435633 - 2⁴ = 125435617 is a prime.

It is a super-2 number, since 2×125435633² = 31468196052221378, 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 125435633.

It is not a weakly prime, because it can be changed into another prime (125435603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62717816 + 62717817.

It is an arithmetic number, because the mean of its divisors is an integer number (62717817).

Almost surely, 2^125435633 is an apocalyptic number.

It is an amenable number.

125435633 is a deficient number, since it is larger than the sum of its proper divisors (1).

125435633 is an equidigital number, since it uses as much as digits as its factorization.

125435633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 32.

The square root of 125435633 is about 11199.8050429461. The cubic root of 125435633 is about 500.5801705439.

The spelling of 125435633 in words is "one hundred twenty-five million, four hundred thirty-five thousand, six hundred thirty-three".