1242612180 has 72 divisors (see below), whose sum is σ = 3822384384. Its totient is φ = 326692800.

The previous prime is 1242612149. The next prime is 1242612197. The reversal of 1242612180 is 812162421.

1242612180 is a `hidden beast` number, since 1 + 2 + 42 + 612 + 1 + 8 + 0 = 666.

1242612180 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35836 + ... + 61395.

It is an arithmetic number, because the mean of its divisors is an integer number (53088672).

Almost surely, 2^1242612180 is an apocalyptic number.

1242612180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242612180 is an abundant number, since it is smaller than the sum of its proper divisors (2579772204).

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

1242612180 is a wasteful number, since it uses less digits than its factorization.

1242612180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97317 (or 97312 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1242612180 is about 35250.7046738076. The cubic root of 1242612180 is about 1075.0909402064.

The spelling of 1242612180 in words is "one billion, two hundred forty-two million, six hundred twelve thousand, one hundred eighty".