126409679 has 16 divisors (see below), whose sum is σ = 151476480. Its totient is φ = 104132160.

The previous prime is 126409667. The next prime is 126409691. The reversal of 126409679 is 976904621.

It is an interprime number because it is at equal distance from previous prime (126409667) and next prime (126409691).

It is a de Polignac number, because none of the positive numbers 2^k-126409679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126409639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8342 + ... + 17955.

It is an arithmetic number, because the mean of its divisors is an integer number (9467280).

Almost surely, 2^126409679 is an apocalyptic number.

126409679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

126409679 is a deficient number, since it is larger than the sum of its proper divisors (25066801).

126409679 is a wasteful number, since it uses less digits than its factorization.

126409679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26350.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 126409679 is about 11243.2059040115. The cubic root of 126409679 is about 501.8725503557.

The spelling of 126409679 in words is "one hundred twenty-six million, four hundred nine thousand, six hundred seventy-nine".