221513069 has 8 divisors (see below), whose sum is σ = 232310400. Its totient is φ = 210812976.

The previous prime is 221513063. The next prime is 221513093. The reversal of 221513069 is 960315122.

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 221513069 - 2⁴ = 221513053 is a prime.

It is a super-2 number, since 2×221513069² = 98136079475597522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221513063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19622 + ... + 28775.

It is an arithmetic number, because the mean of its divisors is an integer number (29038800).

Almost surely, 2^221513069 is an apocalyptic number.

It is an amenable number.

221513069 is a deficient number, since it is larger than the sum of its proper divisors (10797331).

221513069 is a wasteful number, since it uses less digits than its factorization.

221513069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48619.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 221513069 is about 14883.3151213028. The cubic root of 221513069 is about 605.0618692278.

The spelling of 221513069 in words is "two hundred twenty-one million, five hundred thirteen thousand, sixty-nine".