126099 has 6 divisors (see below), whose sum is σ = 182156. Its totient is φ = 84060.

The previous prime is 126097. The next prime is 126107. The reversal of 126099 is 990621.

It is a happy number.

It is not a de Polignac number, because 126099 - 2¹ = 126097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6997 + ... + 7014.

2¹²⁶⁰⁹⁹ is an apocalyptic number.

126099 is a deficient number, since it is larger than the sum of its proper divisors (56057).

126099 is a wasteful number, since it uses less digits than its factorization.

126099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14017 (or 14014 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 126099 is about 355.1042100567. The cubic root of 126099 is about 50.1461059783.

The spelling of 126099 in words is "one hundred twenty-six thousand, ninety-nine".