126839770 has 16 divisors (see below), whose sum is σ = 231063840. Its totient is φ = 50124304.

The previous prime is 126839761. The next prime is 126839789. The reversal of 126839770 is 77938621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75580 + ... + 77239.

It is an arithmetic number, because the mean of its divisors is an integer number (14441490).

Almost surely, 2^126839770 is an apocalyptic number.

126839770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126839770 is a deficient number, since it is larger than the sum of its proper divisors (104224070).

126839770 is a wasteful number, since it uses less digits than its factorization.

126839770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152909.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 126839770 is about 11262.3163692022. The cubic root of 126839770 is about 502.4410894364.

The spelling of 126839770 in words is "one hundred twenty-six million, eight hundred thirty-nine thousand, seven hundred seventy".