126001913 has 8 divisors (see below), whose sum is σ = 127008000. Its totient is φ = 125000208.

The previous prime is 126001891. The next prime is 126001921. The reversal of 126001913 is 319100621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126001913 - 2⁶ = 126001849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126007913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77018 + ... + 78636.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2^126001913 is an apocalyptic number.

It is an amenable number.

126001913 is a deficient number, since it is larger than the sum of its proper divisors (1006087).

126001913 is a wasteful number, since it uses less digits than its factorization.

126001913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 126001913 is about 11225.0573717910. The cubic root of 126001913 is about 501.3323306368.

The spelling of 126001913 in words is "one hundred twenty-six million, one thousand, nine hundred thirteen".