2153304693 has 6 divisors (see below), whose sum is σ = 3110329014. Its totient is φ = 1435536456.

The previous prime is 2153304661. The next prime is 2153304709. The reversal of 2153304693 is 3964033512.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1221712209 + 931592484 = 34953^2 + 30522^2 .

It is not a de Polignac number, because 2153304693 - 2⁵ = 2153304661 is a prime.

It is a super-2 number, since 2×2153304693² = 9273442201791648498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153304613) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 119628030 + ... + 119628047.

It is an arithmetic number, because the mean of its divisors is an integer number (518388169).

Almost surely, 2^2153304693 is an apocalyptic number.

It is an amenable number.

2153304693 is a deficient number, since it is larger than the sum of its proper divisors (957024321).

2153304693 is a wasteful number, since it uses less digits than its factorization.

2153304693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239256083 (or 239256080 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 2153304693 is about 46403.7142155668. The cubic root of 2153304693 is about 1291.3238203841.

The spelling of 2153304693 in words is "two billion, one hundred fifty-three million, three hundred four thousand, six hundred ninety-three".