126944787 has 4 divisors (see below), whose sum is σ = 169259720. Its totient is φ = 84629856.

The previous prime is 126944761. The next prime is 126944809. The reversal of 126944787 is 787449621.

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

It is not a de Polignac number, because 126944787 - 2⁶ = 126944723 is a prime.

It is a super-2 number, since 2×126944787² = 32229957892950738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126944707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21157462 + ... + 21157467.

It is an arithmetic number, because the mean of its divisors is an integer number (42314930).

Almost surely, 2^126944787 is an apocalyptic number.

126944787 is a deficient number, since it is larger than the sum of its proper divisors (42314933).

126944787 is an equidigital number, since it uses as much as digits as its factorization.

126944787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42314932.

The product of its digits is 677376, while the sum is 48.

The square root of 126944787 is about 11266.9777225306. The cubic root of 126944787 is about 502.5797165677.

It can be divided in two parts, 1269 and 44787, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 126944787 in words is "one hundred twenty-six million, nine hundred forty-four thousand, seven hundred eighty-seven".