401502125 has 16 divisors (see below), whose sum is σ = 507124800. Its totient is φ = 317323600.

The previous prime is 401502121. The next prime is 401502131. The reversal of 401502125 is 521205104.

It is not a de Polignac number, because 401502125 - 2² = 401502121 is a prime.

It is a super-2 number, since 2×401502125² = 322407912759031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401502097 and 401502106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401502121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8975 + ... + 29724.

It is an arithmetic number, because the mean of its divisors is an integer number (31695300).

Almost surely, 2^401502125 is an apocalyptic number.

It is an amenable number.

401502125 is a deficient number, since it is larger than the sum of its proper divisors (105622675).

401502125 is an equidigital number, since it uses as much as digits as its factorization.

401502125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38797 (or 38787 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 401502125 is about 20037.5179351136. The cubic root of 401502125 is about 737.7274602425.

Adding to 401502125 its reverse (521205104), we get a palindrome (922707229).

The spelling of 401502125 in words is "four hundred one million, five hundred two thousand, one hundred twenty-five".