4013531125 has 32 divisors (see below), whose sum is σ = 5195604960. Its totient is φ = 3091737600.

The previous prime is 4013531111. The next prime is 4013531141. The reversal of 4013531125 is 5211353104.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 3598920081 + 414611044 = 59991^2 + 20362^2 .

It is not a de Polignac number, because 4013531125 - 2¹¹ = 4013529077 is a prime.

It is a super-2 number, since 2×4013531125² = 32216864182687531250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 4013531125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1568347 + ... + 1570903.

It is an arithmetic number, because the mean of its divisors is an integer number (162362655).

Almost surely, 2^4013531125 is an apocalyptic number.

It is an amenable number.

4013531125 is a deficient number, since it is larger than the sum of its proper divisors (1182073835).

4013531125 is a wasteful number, since it uses less digits than its factorization.

4013531125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034 (or 3024 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 4013531125 is about 63352.4358253098. The cubic root of 4013531125 is about 1589.1889809286.

Adding to 4013531125 its reverse (5211353104), we get a palindrome (9224884229).

The spelling of 4013531125 in words is "four billion, thirteen million, five hundred thirty-one thousand, one hundred twenty-five".