126699249 has 16 divisors (see below), whose sum is σ = 186648192. Its totient is φ = 76040448.

The previous prime is 126699233. The next prime is 126699259. The reversal of 126699249 is 942996621.

It is not a de Polignac number, because 126699249 - 2⁴ = 126699233 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126699198 and 126699207.

It is not an unprimeable number, because it can be changed into a prime (126699229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52834 + ... + 55179.

It is an arithmetic number, because the mean of its divisors is an integer number (11665512).

Almost surely, 2^126699249 is an apocalyptic number.

It is an amenable number.

126699249 is a deficient number, since it is larger than the sum of its proper divisors (59948943).

126699249 is a wasteful number, since it uses less digits than its factorization.

126699249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108056.

The product of its digits is 419904, while the sum is 48.

The square root of 126699249 is about 11256.0760924933. The cubic root of 126699249 is about 502.2554756935.

The spelling of 126699249 in words is "one hundred twenty-six million, six hundred ninety-nine thousand, two hundred forty-nine".