126313513 has 4 divisors (see below), whose sum is σ = 128454480. Its totient is φ = 124172548.

The previous prime is 126313511. The next prime is 126313541. The reversal of 126313513 is 315313621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315313621 = 7 ⋅45044803.

It is a cyclic number.

It is not a de Polignac number, because 126313513 - 2¹ = 126313511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126313511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070395 + ... + 1070512.

It is an arithmetic number, because the mean of its divisors is an integer number (32113620).

Almost surely, 2^126313513 is an apocalyptic number.

It is an amenable number.

126313513 is a deficient number, since it is larger than the sum of its proper divisors (2140967).

126313513 is an equidigital number, since it uses as much as digits as its factorization.

126313513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140966.

The product of its digits is 1620, while the sum is 25.

The square root of 126313513 is about 11238.9284631588. The cubic root of 126313513 is about 501.7452517714.

The spelling of 126313513 in words is "one hundred twenty-six million, three hundred thirteen thousand, five hundred thirteen".