125803490015 has 32 divisors (see below), whose sum is σ = 186126180480. Its totient is φ = 79658901504.

The previous prime is 125803490003. The next prime is 125803490027. The reversal of 125803490015 is 510094308521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125803490003) and next prime (125803490027).

It is a de Polignac number, because none of the positive numbers 2^k-125803490015 is a prime.

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, 1963130 + ... + 2026199.

It is an arithmetic number, because the mean of its divisors is an integer number (5816443140).

Almost surely, 2^125803490015 is an apocalyptic number.

125803490015 is a deficient number, since it is larger than the sum of its proper divisors (60322690465).

125803490015 is a wasteful number, since it uses less digits than its factorization.

125803490015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989411.

The product of its (nonzero) digits is 43200, while the sum is 38.

Adding to 125803490015 its reverse (510094308521), we get a palindrome (635897798536).

The spelling of 125803490015 in words is "one hundred twenty-five billion, eight hundred three million, four hundred ninety thousand, fifteen".