221763134 has 8 divisors (see below), whose sum is σ = 332709888. Its totient is φ = 110859840.

The previous prime is 221763071. The next prime is 221763151. The reversal of 221763134 is 431367122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 221763097 and 221763106.

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, 9614 + ... + 23150.

It is an arithmetic number, because the mean of its divisors is an integer number (41588736).

Almost surely, 2^221763134 is an apocalyptic number.

221763134 is a deficient number, since it is larger than the sum of its proper divisors (110946754).

221763134 is a wasteful number, since it uses less digits than its factorization.

221763134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21730.

The product of its digits is 6048, while the sum is 29.

The square root of 221763134 is about 14891.7136018660. The cubic root of 221763134 is about 605.2894673810.

The spelling of 221763134 in words is "two hundred twenty-one million, seven hundred sixty-three thousand, one hundred thirty-four".