2151456184 has 32 divisors (see below), whose sum is σ = 4253634000. Its totient is φ = 1017349632.

The previous prime is 2151456173. The next prime is 2151456211. The reversal of 2151456184 is 4816541512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78202 + ... + 102070.

Almost surely, 2^2151456184 is an apocalyptic number.

It is an amenable number.

2151456184 is a deficient number, since it is larger than the sum of its proper divisors (2102177816).

2151456184 is a wasteful number, since it uses less digits than its factorization.

2151456184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24487 (or 24483 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The square root of 2151456184 is about 46383.7922554851. The cubic root of 2151456184 is about 1290.9542013692.

Adding to 2151456184 its reverse (4816541512), we get a palindrome (6967997696).

The spelling of 2151456184 in words is "two billion, one hundred fifty-one million, four hundred fifty-six thousand, one hundred eighty-four".