120709090 has 32 divisors (see below), whose sum is σ = 233046720. Its totient is φ = 44875584.

The previous prime is 120709087. The next prime is 120709093. The reversal of 120709090 is 90907021.

It is an interprime number because it is at equal distance from previous prime (120709087) and next prime (120709093).

It is not an unprimeable number, because it can be changed into a prime (120709093) 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, 4077 + ... + 16063.

It is an arithmetic number, because the mean of its divisors is an integer number (7282710).

Almost surely, 2^120709090 is an apocalyptic number.

120709090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120709090 is a deficient number, since it is larger than the sum of its proper divisors (112337630).

120709090 is a wasteful number, since it uses less digits than its factorization.

120709090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12066.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 120709090 is about 10986.7688607707. The cubic root of 120709090 is about 494.2120443372.

The spelling of 120709090 in words is "one hundred twenty million, seven hundred nine thousand, ninety".