120287090 has 32 divisors (see below), whose sum is σ = 269944704. Its totient is φ = 37491840.

The previous prime is 120287029. The next prime is 120287093. The reversal of 120287090 is 90782021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120287093) 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, 77339 + ... + 78878.

It is an arithmetic number, because the mean of its divisors is an integer number (8435772).

Almost surely, 2^120287090 is an apocalyptic number.

120287090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120287090 is an abundant number, since it is smaller than the sum of its proper divisors (149657614).

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

120287090 is a wasteful number, since it uses less digits than its factorization.

120287090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156242.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 120287090 is about 10967.5471277766. The cubic root of 120287090 is about 493.6354487236.

The spelling of 120287090 in words is "one hundred twenty million, two hundred eighty-seven thousand, ninety".