126840570 has 32 divisors (see below), whose sum is σ = 322325568. Its totient is φ = 31834368.

The previous prime is 126840559. The next prime is 126840589. The reversal of 126840570 is 75048621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123844 + ... + 124863.

It is an arithmetic number, because the mean of its divisors is an integer number (10072674).

Almost surely, 2^126840570 is an apocalyptic number.

126840570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126840570 is an abundant number, since it is smaller than the sum of its proper divisors (195484998).

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

126840570 is a wasteful number, since it uses less digits than its factorization.

126840570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248734.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 126840570 is about 11262.3518858185. The cubic root of 126840570 is about 502.4421457613.

The spelling of 126840570 in words is "one hundred twenty-six million, eight hundred forty thousand, five hundred seventy".