40202125 has 8 divisors (see below), whose sum is σ = 50172408. Its totient is φ = 32161600.

The previous prime is 40202087. The next prime is 40202153. The reversal of 40202125 is 52120204.

It can be written as a sum of positive squares in 4 ways, for example, as 2022084 + 38180041 = 1422^2 + 6179^2 .

It is not a de Polignac number, because 40202125 - 2¹⁹ = 39677837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40202099 and 40202108.

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, 160684 + ... + 160933.

It is an arithmetic number, because the mean of its divisors is an integer number (6271551).

Almost surely, 2^40202125 is an apocalyptic number.

It is an amenable number.

40202125 is a deficient number, since it is larger than the sum of its proper divisors (9970283).

40202125 is an equidigital number, since it uses as much as digits as its factorization.

40202125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321632 (or 321622 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 40202125 is about 6340.5145690236. The cubic root of 40202125 is about 342.5702699160.

Adding to 40202125 its reverse (52120204), we get a palindrome (92322329).

The spelling of 40202125 in words is "forty million, two hundred two thousand, one hundred twenty-five".