2154226463 has 4 divisors (see below), whose sum is σ = 2173290528. Its totient is φ = 2135162400.

The previous prime is 2154226457. The next prime is 2154226471. The reversal of 2154226463 is 3646224512.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154226463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154226433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9531863 + ... + 9532088.

It is an arithmetic number, because the mean of its divisors is an integer number (543322632).

Almost surely, 2^2154226463 is an apocalyptic number.

2154226463 is a deficient number, since it is larger than the sum of its proper divisors (19064065).

2154226463 is a wasteful number, since it uses less digits than its factorization.

2154226463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19064064.

The product of its digits is 69120, while the sum is 35.

The square root of 2154226463 is about 46413.6452242226. The cubic root of 2154226463 is about 1291.5080540656.

The spelling of 2154226463 in words is "two billion, one hundred fifty-four million, two hundred twenty-six thousand, four hundred sixty-three".