125701013 has 4 divisors (see below), whose sum is σ = 126190380. Its totient is φ = 125211648.

The previous prime is 125700947. The next prime is 125701033. The reversal of 125701013 is 310107521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121925764 + 3775249 = 11042^2 + 1943^2 .

It is a cyclic number.

It is not a de Polignac number, because 125701013 - 2¹² = 125696917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125701033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244298 + ... + 244811.

It is an arithmetic number, because the mean of its divisors is an integer number (31547595).

Almost surely, 2^125701013 is an apocalyptic number.

It is an amenable number.

125701013 is a deficient number, since it is larger than the sum of its proper divisors (489367).

125701013 is an equidigital number, since it uses as much as digits as its factorization.

125701013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489366.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 125701013 is about 11211.6463108680. The cubic root of 125701013 is about 500.9329421552.

Adding to 125701013 its reverse (310107521), we get a palindrome (435808534).

The spelling of 125701013 in words is "one hundred twenty-five million, seven hundred one thousand, thirteen".