126440783 has 8 divisors (see below), whose sum is σ = 149486880. Its totient is φ = 104640480.

The previous prime is 126440779. The next prime is 126440791. The reversal of 126440783 is 387044621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126440783 - 2² = 126440779 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126442783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311228 + ... + 311633.

It is an arithmetic number, because the mean of its divisors is an integer number (18685860).

Almost surely, 2^126440783 is an apocalyptic number.

126440783 is a deficient number, since it is larger than the sum of its proper divisors (23046097).

126440783 is an equidigital number, since it uses as much as digits as its factorization.

126440783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622897.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 126440783 is about 11244.5890542963. The cubic root of 126440783 is about 501.9137100827.

The spelling of 126440783 in words is "one hundred twenty-six million, four hundred forty thousand, seven hundred eighty-three".