120142770 has 32 divisors (see below), whose sum is σ = 314556480. Its totient is φ = 29125440.

The previous prime is 120142769. The next prime is 120142787. The reversal of 120142770 is 77241021.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120142770.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181705 + ... + 182364.

It is an arithmetic number, because the mean of its divisors is an integer number (9829890).

Almost surely, 2^120142770 is an apocalyptic number.

120142770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120142770 is an abundant number, since it is smaller than the sum of its proper divisors (194413710).

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

120142770 is a wasteful number, since it uses less digits than its factorization.

120142770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364090.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 120142770 is about 10960.9657421233. The cubic root of 120142770 is about 493.4379490620.

Adding to 120142770 its reverse (77241021), we get a palindrome (197383791).

The spelling of 120142770 in words is "one hundred twenty million, one hundred forty-two thousand, seven hundred seventy".