126699456 has 112 divisors (see below), whose sum is σ = 376879104. Its totient is φ = 37272576.

The previous prime is 126699439. The next prime is 126699481. The reversal of 126699456 is 654996621.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56305 + ... + 58511.

It is an arithmetic number, because the mean of its divisors is an integer number (3364992).

Almost surely, 2^126699456 is an apocalyptic number.

126699456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126699456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188439552).

126699456 is an abundant number, since it is smaller than the sum of its proper divisors (250179648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126699456 is a wasteful number, since it uses less digits than its factorization.

126699456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2248 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 126699456 is about 11256.0852875234. The cubic root of 126699456 is about 502.2557492200.

The spelling of 126699456 in words is "one hundred twenty-six million, six hundred ninety-nine thousand, four hundred fifty-six".