126840664 has 32 divisors (see below), whose sum is σ = 248832000. Its totient is φ = 60535552.

The previous prime is 126840661. The next prime is 126840667. The reversal of 126840664 is 466048621.

It is an interprime number because it is at equal distance from previous prime (126840661) and next prime (126840667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126840661) 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 7 ways as a sum of consecutive naturals, for example, 17577 + ... + 23719.

It is an arithmetic number, because the mean of its divisors is an integer number (7776000).

Almost surely, 2^126840664 is an apocalyptic number.

It is an amenable number.

126840664 is a deficient number, since it is larger than the sum of its proper divisors (121991336).

126840664 is a wasteful number, since it uses less digits than its factorization.

126840664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267 (or 6263 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 126840664 is about 11262.3560590136. The cubic root of 126840664 is about 502.4422698792.

The spelling of 126840664 in words is "one hundred twenty-six million, eight hundred forty thousand, six hundred sixty-four".