120851380 has 24 divisors (see below), whose sum is σ = 273310632. Its totient is φ = 44621952.

The previous prime is 120851377. The next prime is 120851413. The reversal of 120851380 is 83158021.

It can be written as a sum of positive squares in 4 ways, for example, as 9084196 + 111767184 = 3014^2 + 10572^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232147 + ... + 232666.

It is an arithmetic number, because the mean of its divisors is an integer number (11387943).

Almost surely, 2^120851380 is an apocalyptic number.

120851380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120851380 is an abundant number, since it is smaller than the sum of its proper divisors (152459252).

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

120851380 is a wasteful number, since it uses less digits than its factorization.

120851380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464835 (or 464833 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 120851380 is about 10993.2424698084. The cubic root of 120851380 is about 494.4061579111.

The spelling of 120851380 in words is "one hundred twenty million, eight hundred fifty-one thousand, three hundred eighty".