125516330135 has 32 divisors (see below), whose sum is σ = 185814743040. Its totient is φ = 79487388288.

The previous prime is 125516330131. The next prime is 125516330143. The reversal of 125516330135 is 531033615521.

It is not a de Polignac number, because 125516330135 - 2² = 125516330131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a junction number, because it is equal to n+sod(n) for n = 125516330095 and 125516330104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125516330131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2664947 + ... + 2711636.

It is an arithmetic number, because the mean of its divisors is an integer number (5806710720).

Almost surely, 2^125516330135 is an apocalyptic number.

125516330135 is a deficient number, since it is larger than the sum of its proper divisors (60298412905).

125516330135 is a wasteful number, since it uses less digits than its factorization.

125516330135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376647.

The product of its (nonzero) digits is 40500, while the sum is 35.

Adding to 125516330135 its reverse (531033615521), we get a palindrome (656549945656).

The spelling of 125516330135 in words is "one hundred twenty-five billion, five hundred sixteen million, three hundred thirty thousand, one hundred thirty-five".