126100799 has 4 divisors (see below), whose sum is σ = 137564520. Its totient is φ = 114637080.

The previous prime is 126100771. The next prime is 126100801. The reversal of 126100799 is 997001621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126100799 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 (126100769) 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, 5731844 + ... + 5731865.

It is an arithmetic number, because the mean of its divisors is an integer number (34391130).

Almost surely, 2^126100799 is an apocalyptic number.

126100799 is a deficient number, since it is larger than the sum of its proper divisors (11463721).

126100799 is a wasteful number, since it uses less digits than its factorization.

126100799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11463720.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 126100799 is about 11229.4612070215. The cubic root of 126100799 is about 501.4634444815.

The spelling of 126100799 in words is "one hundred twenty-six million, one hundred thousand, seven hundred ninety-nine".