2154144250 has 32 divisors (see below), whose sum is σ = 4045588560. Its totient is φ = 858873600.

The previous prime is 2154144241. The next prime is 2154144263. The reversal of 2154144250 is 524414512.

It can be written as a sum of positive squares in 8 ways, for example, as 131033809 + 2023110441 = 11447^2 + 44979^2 .

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, 64486 + ... + 92014.

Almost surely, 2^2154144250 is an apocalyptic number.

2154144250 is a deficient number, since it is larger than the sum of its proper divisors (1891444310).

2154144250 is a wasteful number, since it uses less digits than its factorization.

2154144250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27859 (or 27849 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2154144250 is about 46412.7595602761. The cubic root of 2154144250 is about 1291.4916243317.

Adding to 2154144250 its reverse (524414512), we get a palindrome (2678558762).

The spelling of 2154144250 in words is "two billion, one hundred fifty-four million, one hundred forty-four thousand, two hundred fifty".