2151543244 has 6 divisors (see below), whose sum is σ = 3765200684. Its totient is φ = 1075771620.

The previous prime is 2151543217. The next prime is 2151543287. The reversal of 2151543244 is 4423451512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268942902 + ... + 268942909.

Almost surely, 2^2151543244 is an apocalyptic number.

It is an amenable number.

2151543244 is a deficient number, since it is larger than the sum of its proper divisors (1613657440).

2151543244 is a wasteful number, since it uses less digits than its factorization.

2151543244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537885815 (or 537885813 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 2151543244 is about 46384.7307203567. The cubic root of 2151543244 is about 1290.9716142200.

Adding to 2151543244 its reverse (4423451512), we get a palindrome (6574994756).

The spelling of 2151543244 in words is "two billion, one hundred fifty-one million, five hundred forty-three thousand, two hundred forty-four".