1721214134 has 8 divisors (see below), whose sum is σ = 2582294880. Its totient is φ = 860449176.

The previous prime is 1721214133. The next prime is 1721214169. The reversal of 1721214134 is 4314121271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1721214133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64814 + ... + 87425.

It is an arithmetic number, because the mean of its divisors is an integer number (322786860).

Almost surely, 2^1721214134 is an apocalyptic number.

1721214134 is a deficient number, since it is larger than the sum of its proper divisors (861080746).

1721214134 is a wasteful number, since it uses less digits than its factorization.

1721214134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157894.

The product of its digits is 1344, while the sum is 26.

The square root of 1721214134 is about 41487.5178095774. The cubic root of 1721214134 is about 1198.4271370042.

The spelling of 1721214134 in words is "one billion, seven hundred twenty-one million, two hundred fourteen thousand, one hundred thirty-four".