126801913 has 4 divisors (see below), whose sum is σ = 144916480. Its totient is φ = 108687348.

The previous prime is 126801893. The next prime is 126801943. The reversal of 126801913 is 319108621.

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 not a de Polignac number, because 126801913 - 2⁵ = 126801881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126801943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9057273 + ... + 9057286.

It is an arithmetic number, because the mean of its divisors is an integer number (36229120).

Almost surely, 2^126801913 is an apocalyptic number.

It is an amenable number.

126801913 is a deficient number, since it is larger than the sum of its proper divisors (18114567).

126801913 is an equidigital number, since it uses as much as digits as its factorization.

126801913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18114566.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 126801913 is about 11260.6355504474. The cubic root of 126801913 is about 502.3910977422.

The spelling of 126801913 in words is "one hundred twenty-six million, eight hundred one thousand, nine hundred thirteen".