126589013 has 4 divisors (see below), whose sum is σ = 127036608. Its totient is φ = 126141420.

The previous prime is 126589009. The next prime is 126589037. The reversal of 126589013 is 310985621.

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: 310985621 = 73 ⋅4260077.

It is a cyclic number.

It is not a de Polignac number, because 126589013 - 2² = 126589009 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 (126589093) 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, 223373 + ... + 223938.

It is an arithmetic number, because the mean of its divisors is an integer number (31759152).

Almost surely, 2^126589013 is an apocalyptic number.

It is an amenable number.

126589013 is a deficient number, since it is larger than the sum of its proper divisors (447595).

126589013 is an equidigital number, since it uses as much as digits as its factorization.

126589013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447594.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 126589013 is about 11251.1782938499. The cubic root of 126589013 is about 502.1097692265.

The spelling of 126589013 in words is "one hundred twenty-six million, five hundred eighty-nine thousand, thirteen".