2151512443 has 8 divisors (see below), whose sum is σ = 2267558720. Its totient is φ = 2035747080.

The previous prime is 2151512423. The next prime is 2151512453. The reversal of 2151512443 is 3442151512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2151512443 - 2¹⁷ = 2151381371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151512413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54405 + ... + 85222.

It is an arithmetic number, because the mean of its divisors is an integer number (283444840).

Almost surely, 2^2151512443 is an apocalyptic number.

2151512443 is a deficient number, since it is larger than the sum of its proper divisors (116046277).

2151512443 is a wasteful number, since it uses less digits than its factorization.

2151512443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140457.

The product of its digits is 4800, while the sum is 28.

The square root of 2151512443 is about 46384.3987025810. The cubic root of 2151512443 is about 1290.9654537727.

Adding to 2151512443 its reverse (3442151512), we get a palindrome (5593663955).

The spelling of 2151512443 in words is "two billion, one hundred fifty-one million, five hundred twelve thousand, four hundred forty-three".