2151054646 has 24 divisors (see below), whose sum is σ = 3541774680. Its totient is φ = 979183296.

The previous prime is 2151054583. The next prime is 2151054649. The reversal of 2151054646 is 6464501512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151054649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18916 + ... + 68263.

It is an arithmetic number, because the mean of its divisors is an integer number (147573945).

Almost surely, 2^2151054646 is an apocalyptic number.

2151054646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2151054646 is a deficient number, since it is larger than the sum of its proper divisors (1390720034).

2151054646 is a wasteful number, since it uses less digits than its factorization.

2151054646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87280 (or 87267 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2151054646 is about 46379.4636234616. The cubic root of 2151054646 is about 1290.8738837648.

The spelling of 2151054646 in words is "two billion, one hundred fifty-one million, fifty-four thousand, six hundred forty-six".