2160021454 has 4 divisors (see below), whose sum is σ = 3240032184. Its totient is φ = 1080010726.

The previous prime is 2160021433. The next prime is 2160021463. The reversal of 2160021454 is 4541200612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540005362 + ... + 540005365.

It is an arithmetic number, because the mean of its divisors is an integer number (810008046).

Almost surely, 2^2160021454 is an apocalyptic number.

2160021454 is a deficient number, since it is larger than the sum of its proper divisors (1080010730).

2160021454 is a wasteful number, since it uses less digits than its factorization.

2160021454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080010729.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2160021454 is about 46476.0309622067. The cubic root of 2160021454 is about 1292.6650937496.

The spelling of 2160021454 in words is "two billion, one hundred sixty million, twenty-one thousand, four hundred fifty-four".