126128874 has 32 divisors (see below), whose sum is σ = 259358400. Its totient is φ = 40867200.

The previous prime is 126128869. The next prime is 126128881. The reversal of 126128874 is 478821621.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80652 + ... + 82200.

It is an arithmetic number, because the mean of its divisors is an integer number (8104950).

Almost surely, 2^126128874 is an apocalyptic number.

126128874 is an abundant number, since it is smaller than the sum of its proper divisors (133229526).

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

126128874 is a wasteful number, since it uses less digits than its factorization.

126128874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its digits is 43008, while the sum is 39.

The square root of 126128874 is about 11230.7111974265. The cubic root of 126128874 is about 501.5006568852.

It can be divided in two parts, 1261 and 28874, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 126128874 in words is "one hundred twenty-six million, one hundred twenty-eight thousand, eight hundred seventy-four".