2151353205 has 24 divisors (see below), whose sum is σ = 3739603608. Its totient is φ = 1144129536.

The previous prime is 2151353177. The next prime is 2151353251. The reversal of 2151353205 is 5023531512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 806957649 + 1344395556 = 28407^2 + 36666^2 .

It is not a de Polignac number, because 2151353205 - 2⁵ = 2151353173 is a prime.

It is a super-2 number, since 2×2151353205² = 9256641225327544050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51832 + ... + 83601.

It is an arithmetic number, because the mean of its divisors is an integer number (155816817).

Almost surely, 2^2151353205 is an apocalyptic number.

It is an amenable number.

2151353205 is a deficient number, since it is larger than the sum of its proper divisors (1588250403).

2151353205 is a wasteful number, since it uses less digits than its factorization.

2151353205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135797 (or 135794 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2151353205 is about 46382.6821669467. The cubic root of 2151353205 is about 1290.9336039563.

Adding to 2151353205 its reverse (5023531512), we get a palindrome (7174884717).

The spelling of 2151353205 in words is "two billion, one hundred fifty-one million, three hundred fifty-three thousand, two hundred five".