2154237120 has 560 divisors, whose sum is σ = 9063825408. Its totient is φ = 475269120.

The previous prime is 2154237097. The next prime is 2154237133. The reversal of 2154237120 is 217324512.

2154237120 is a `hidden beast` number, since 215 + 423 + 7 + 1 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5624449 + ... + 5624831.

Almost surely, 2^2154237120 is an apocalyptic number.

2154237120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154237120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4531912704).

2154237120 is an abundant number, since it is smaller than the sum of its proper divisors (6909588288).

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

2154237120 is a wasteful number, since it uses less digits than its factorization.

2154237120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2154237120 is about 46413.7600286811. The cubic root of 2154237120 is about 1291.5101837672.

The spelling of 2154237120 in words is "two billion, one hundred fifty-four million, two hundred thirty-seven thousand, one hundred twenty".