409652125 has 8 divisors (see below), whose sum is σ = 511246008. Its totient is φ = 327721600.

The previous prime is 409652083. The next prime is 409652147. The reversal of 409652125 is 521256904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3790809 + 405861316 = 1947^2 + 20146^2 .

It is not a de Polignac number, because 409652125 - 2¹¹ = 409650077 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1638484 + ... + 1638733.

It is an arithmetic number, because the mean of its divisors is an integer number (63905751).

Almost surely, 2^409652125 is an apocalyptic number.

It is an amenable number.

409652125 is a deficient number, since it is larger than the sum of its proper divisors (101593883).

409652125 is an equidigital number, since it uses as much as digits as its factorization.

409652125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277232 (or 3277222 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 409652125 is about 20239.8647475718. The cubic root of 409652125 is about 742.6857150129.

The spelling of 409652125 in words is "four hundred nine million, six hundred fifty-two thousand, one hundred twenty-five".