2151505269 has 24 divisors (see below), whose sum is σ = 3163942080. Its totient is φ = 1408447872.

The previous prime is 2151505247. The next prime is 2151505271. The reversal of 2151505269 is 9625051512.

2151505269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151505269 - 2⁹ = 2151504757 is a prime.

It is a super-2 number, since 2×2151505269² = 9257949845069524722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151505219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647757 + ... + 651069.

It is an arithmetic number, because the mean of its divisors is an integer number (131830920).

Almost surely, 2^2151505269 is an apocalyptic number.

It is an amenable number.

2151505269 is a deficient number, since it is larger than the sum of its proper divisors (1012436811).

2151505269 is a wasteful number, since it uses less digits than its factorization.

2151505269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 2151505269 is about 46384.3213704803. The cubic root of 2151505269 is about 1290.9640189066.

The spelling of 2151505269 in words is "two billion, one hundred fifty-one million, five hundred five thousand, two hundred sixty-nine".