2173234521 has 8 divisors (see below), whose sum is σ = 2924727264. Its totient is φ = 1435282400.

The previous prime is 2173234519. The next prime is 2173234523. The reversal of 2173234521 is 1254323712.

It is an interprime number because it is at equal distance from previous prime (2173234519) and next prime (2173234523).

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

It is a cyclic number.

It is not a de Polignac number, because 2173234521 - 2¹ = 2173234519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2173234523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3384780 + ... + 3385421.

It is an arithmetic number, because the mean of its divisors is an integer number (365590908).

Almost surely, 2^2173234521 is an apocalyptic number.

It is an amenable number.

2173234521 is a deficient number, since it is larger than the sum of its proper divisors (751492743).

2173234521 is a wasteful number, since it uses less digits than its factorization.

2173234521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770311.

The product of its digits is 10080, while the sum is 30.

The square root of 2173234521 is about 46617.9635012084. The cubic root of 2173234521 is about 1295.2955246500.

The spelling of 2173234521 in words is "two billion, one hundred seventy-three million, two hundred thirty-four thousand, five hundred twenty-one".