125005031413 has 6 divisors (see below), whose sum is σ = 125636393814. Its totient is φ = 124376826024.

The previous prime is 125005031407. The next prime is 125005031419. The reversal of 125005031413 is 314130500521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125005031407) and next prime (125005031419).

It can be written as a sum of positive squares in only one way, i.e., 122389424964 + 2615606449 = 349842^2 + 51143^2 .

It is not a de Polignac number, because 125005031413 - 2⁵ = 125005031381 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 (125005031419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1538706 + ... + 1617907.

It is an arithmetic number, because the mean of its divisors is an integer number (20939398969).

Almost surely, 2^125005031413 is an apocalyptic number.

It is an amenable number.

125005031413 is a deficient number, since it is larger than the sum of its proper divisors (631362401).

125005031413 is an frugal number, since it uses more digits than its factorization.

125005031413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157011 (or 3156812 counting only the distinct ones).

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

Adding to 125005031413 its reverse (314130500521), we get a palindrome (439135531934).

The spelling of 125005031413 in words is "one hundred twenty-five billion, five million, thirty-one thousand, four hundred thirteen".