2151008245 has 4 divisors (see below), whose sum is σ = 2581209900. Its totient is φ = 1720806592.

The previous prime is 2151008239. The next prime is 2151008273. The reversal of 2151008245 is 5428001512.

2151008245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264582756 + 1886425489 = 16266^2 + 43433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151008245 - 2⁷ = 2151008117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215100820 + ... + 215100829.

It is an arithmetic number, because the mean of its divisors is an integer number (645302475).

Almost surely, 2^2151008245 is an apocalyptic number.

It is an amenable number.

2151008245 is a deficient number, since it is larger than the sum of its proper divisors (430201655).

2151008245 is an equidigital number, since it uses as much as digits as its factorization.

2151008245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430201654.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 2151008245 is about 46378.9633885881. The cubic root of 2151008245 is about 1290.8646017644.

Adding to 2151008245 its reverse (5428001512), we get a palindrome (7579009757).

The spelling of 2151008245 in words is "two billion, one hundred fifty-one million, eight thousand, two hundred forty-five".