2151505396 has 12 divisors (see below), whose sum is σ = 3803950948. Its totient is φ = 1064662272.

The previous prime is 2151505379. The next prime is 2151505453. The reversal of 2151505396 is 6935051512.

2151505396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1543389796 + 608115600 = 39286^2 + 24660^2 .

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, 2772171 + ... + 2772946.

Almost surely, 2^2151505396 is an apocalyptic number.

It is an amenable number.

2151505396 is a deficient number, since it is larger than the sum of its proper divisors (1652445552).

2151505396 is a wasteful number, since it uses less digits than its factorization.

2151505396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545218 (or 5545216 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 2151505396 is about 46384.3227394774. The cubic root of 2151505396 is about 1290.9640443078.

The spelling of 2151505396 in words is "two billion, one hundred fifty-one million, five hundred five thousand, three hundred ninety-six".