126499 has 2 divisors, whose sum is σ = 126500. Its totient is φ = 126498.

The previous prime is 126493. The next prime is 126517. The reversal of 126499 is 994621.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (994621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126499 - 2³ = 126491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126499.

It is not a weakly prime, because it can be changed into another prime (126491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63249 + 63250.

It is an arithmetic number, because the mean of its divisors is an integer number (63250).

2¹²⁶⁴⁹⁹ is an apocalyptic number.

126499 is a deficient number, since it is larger than the sum of its proper divisors (1).

126499 is an equidigital number, since it uses as much as digits as its factorization.

126499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 126499 is about 355.6669790689. Note that the first 3 decimals coincide. The cubic root of 126499 is about 50.1990730135.

It can be divided in two parts, 126 and 499, that added together give a 4-th power (625 = 5⁴).

The spelling of 126499 in words is "one hundred twenty-six thousand, four hundred ninety-nine".