221053134 has 8 divisors (see below), whose sum is σ = 442106280. Its totient is φ = 73684376.

The previous prime is 221053123. The next prime is 221053169. The reversal of 221053134 is 431350122.

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

221053134 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 221053134.

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, 18421089 + ... + 18421100.

It is an arithmetic number, because the mean of its divisors is an integer number (55263285).

Almost surely, 2^221053134 is an apocalyptic number.

221053134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221053134 is a wasteful number, since it uses less digits than its factorization.

221053134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36842194.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 221053134 is about 14867.8557297278. The cubic root of 221053134 is about 604.6428089867.

The spelling of 221053134 in words is "two hundred twenty-one million, fifty-three thousand, one hundred thirty-four".