219142693 has 8 divisors (see below), whose sum is σ = 273216960. Its totient is φ = 170760480.

The previous prime is 219142681. The next prime is 219142771. The reversal of 219142693 is 396241912.

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

It is not a de Polignac number, because 219142693 - 2⁵ = 219142661 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 (219142093) 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, 1422928 + ... + 1423081.

It is an arithmetic number, because the mean of its divisors is an integer number (34152120).

Almost surely, 2^219142693 is an apocalyptic number.

It is an amenable number.

219142693 is a deficient number, since it is larger than the sum of its proper divisors (54074267).

219142693 is a wasteful number, since it uses less digits than its factorization.

219142693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846027.

The product of its digits is 23328, while the sum is 37.

The square root of 219142693 is about 14803.4689515667. The cubic root of 219142693 is about 602.8959013646.

The spelling of 219142693 in words is "two hundred nineteen million, one hundred forty-two thousand, six hundred ninety-three".