534001221 has 16 divisors (see below), whose sum is σ = 851968320. Its totient is φ = 328615920.

The previous prime is 534001217. The next prime is 534001231. The reversal of 534001221 is 122100435.

It is not a de Polignac number, because 534001221 - 2² = 534001217 is a prime.

534001221 is a modest number, since divided by 1221 gives 534 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 534001194 and 534001203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534001201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760335 + ... + 761036.

It is an arithmetic number, because the mean of its divisors is an integer number (53248020).

Almost surely, 2^534001221 is an apocalyptic number.

It is an amenable number.

534001221 is a deficient number, since it is larger than the sum of its proper divisors (317967099).

534001221 is a wasteful number, since it uses less digits than its factorization.

534001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521393 (or 1521387 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 534001221 is about 23108.4664354864. The cubic root of 534001221 is about 811.2986438417.

Adding to 534001221 its reverse (122100435), we get a palindrome (656101656).

The spelling of 534001221 in words is "five hundred thirty-four million, one thousand, two hundred twenty-one".