126502913 has 4 divisors (see below), whose sum is σ = 126656340. Its totient is φ = 126349488.

The previous prime is 126502879. The next prime is 126502949. The reversal of 126502913 is 319205621.

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 66471409 + 60031504 = 8153^2 + 7748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126502913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126502613) 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, 75470 + ... + 77127.

It is an arithmetic number, because the mean of its divisors is an integer number (31664085).

Almost surely, 2^126502913 is an apocalyptic number.

It is an amenable number.

126502913 is a deficient number, since it is larger than the sum of its proper divisors (153427).

126502913 is an equidigital number, since it uses as much as digits as its factorization.

126502913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153426.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 126502913 is about 11247.3513771021. The cubic root of 126502913 is about 501.9959061163.

The spelling of 126502913 in words is "one hundred twenty-six million, five hundred two thousand, nine hundred thirteen".