120999290 has 8 divisors (see below), whose sum is σ = 217798740. Its totient is φ = 48399712.

The previous prime is 120999289. The next prime is 120999299. The reversal of 120999290 is 92999021.

It can be written as a sum of positive squares in 2 ways, for example, as 120275089 + 724201 = 10967^2 + 851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (120999299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6049955 + ... + 6049974.

Almost surely, 2^120999290 is an apocalyptic number.

120999290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120999290 is a deficient number, since it is larger than the sum of its proper divisors (96799450).

120999290 is a wasteful number, since it uses less digits than its factorization.

120999290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12099936.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 120999290 is about 10999.9677272254. The cubic root of 120999290 is about 494.6077769064.

The spelling of 120999290 in words is "one hundred twenty million, nine hundred ninety-nine thousand, two hundred ninety".