113221533 has 8 divisors (see below), whose sum is σ = 151396000. Its totient is φ = 75264048.

The previous prime is 113221519. The next prime is 113221561. The reversal of 113221533 is 335122311.

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

It is not a de Polignac number, because 113221533 - 2⁶ = 113221469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113221583) 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, 53023 + ... + 55116.

It is an arithmetic number, because the mean of its divisors is an integer number (18924500).

Almost surely, 2^113221533 is an apocalyptic number.

It is an amenable number.

113221533 is a deficient number, since it is larger than the sum of its proper divisors (38174467).

113221533 is a wasteful number, since it uses less digits than its factorization.

113221533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108491.

The product of its digits is 540, while the sum is 21.

The square root of 113221533 is about 10640.5607465020. The cubic root of 113221533 is about 483.7745418179.

Adding to 113221533 its reverse (335122311), we get a palindrome (448343844).

The spelling of 113221533 in words is "one hundred thirteen million, two hundred twenty-one thousand, five hundred thirty-three".