2173122454 has 8 divisors (see below), whose sum is σ = 3431246040. Its totient is φ = 1029373776.

The previous prime is 2173122439. The next prime is 2173122463. The reversal of 2173122454 is 4542213712.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2173122454² = 9444922400157964232, which contains 22 as substring.

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, 28593679 + ... + 28593754.

It is an arithmetic number, because the mean of its divisors is an integer number (428905755).

Almost surely, 2^2173122454 is an apocalyptic number.

2173122454 is a deficient number, since it is larger than the sum of its proper divisors (1258123586).

2173122454 is a wasteful number, since it uses less digits than its factorization.

2173122454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57187454.

The product of its digits is 13440, while the sum is 31.

The square root of 2173122454 is about 46616.7615134299. The cubic root of 2173122454 is about 1295.2732594692.

The spelling of 2173122454 in words is "two billion, one hundred seventy-three million, one hundred twenty-two thousand, four hundred fifty-four".