126087913 has 4 divisors (see below), whose sum is σ = 144100480. Its totient is φ = 108075348.

The previous prime is 126087889. The next prime is 126087917. The reversal of 126087913 is 319780621.

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.

It is a cyclic number.

It is not a de Polignac number, because 126087913 - 2²¹ = 123990761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126087917) 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, 9006273 + ... + 9006286.

It is an arithmetic number, because the mean of its divisors is an integer number (36025120).

Almost surely, 2^126087913 is an apocalyptic number.

It is an amenable number.

126087913 is a deficient number, since it is larger than the sum of its proper divisors (18012567).

126087913 is an equidigital number, since it uses as much as digits as its factorization.

126087913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18012566.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 126087913 is about 11228.8874337576. The cubic root of 126087913 is about 501.4463627022.

The spelling of 126087913 in words is "one hundred twenty-six million, eighty-seven thousand, nine hundred thirteen".