125135311 has 16 divisors (see below), whose sum is σ = 150854400. Its totient is φ = 101400768.

The previous prime is 125135287. The next prime is 125135333. The reversal of 125135311 is 113531521.

It is a de Polignac number, because none of the positive numbers 2^k-125135311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125135611) 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, 107016 + ... + 108178.

It is an arithmetic number, because the mean of its divisors is an integer number (9428400).

Almost surely, 2^125135311 is an apocalyptic number.

125135311 is a deficient number, since it is larger than the sum of its proper divisors (25719089).

125135311 is a wasteful number, since it uses less digits than its factorization.

125135311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998.

The product of its digits is 450, while the sum is 22.

The square root of 125135311 is about 11186.3895426541. The cubic root of 125135311 is about 500.1803496069.

Adding to 125135311 its reverse (113531521), we get a palindrome (238666832).

The spelling of 125135311 in words is "one hundred twenty-five million, one hundred thirty-five thousand, three hundred eleven".