2151445045 has 8 divisors (see below), whose sum is σ = 2583741600. Its totient is φ = 1719817680.

The previous prime is 2151445039. The next prime is 2151445057. The reversal of 2151445045 is 5405441512.

It is a happy number.

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

It is not a de Polignac number, because 2151445045 - 2¹⁷ = 2151313973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151444998 and 2151445016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160195 + ... + 173104.

It is an arithmetic number, because the mean of its divisors is an integer number (322967700).

Almost surely, 2^2151445045 is an apocalyptic number.

It is an amenable number.

2151445045 is a deficient number, since it is larger than the sum of its proper divisors (432296555).

2151445045 is a wasteful number, since it uses less digits than its factorization.

2151445045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334595.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 2151445045 is about 46383.6721810596. The cubic root of 2151445045 is about 1290.9519734264.

Adding to 2151445045 its reverse (5405441512), we get a palindrome (7556886557).

The spelling of 2151445045 in words is "two billion, one hundred fifty-one million, four hundred forty-five thousand, forty-five".