2154143250 has 192 divisors, whose sum is σ = 6696877824. Its totient is φ = 489427200.

The previous prime is 2154143249. The next prime is 2154143261. The reversal of 2154143250 is 523414512.

2154143250 is a `hidden beast` number, since 215 + 414 + 32 + 5 + 0 = 666.

It is a super-3 number, since 3×2154143250³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3669457 + ... + 3670043.

It is an arithmetic number, because the mean of its divisors is an integer number (34879572).

Almost surely, 2^2154143250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154143250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3348438912).

2154143250 is an abundant number, since it is smaller than the sum of its proper divisors (4542734574).

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

2154143250 is a wasteful number, since it uses less digits than its factorization.

2154143250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2154143250 is about 46412.7487873752. The cubic root of 2154143250 is about 1291.4914244856.

Adding to 2154143250 its reverse (523414512), we get a palindrome (2677557762).

The spelling of 2154143250 in words is "two billion, one hundred fifty-four million, one hundred forty-three thousand, two hundred fifty".