3521016243 has 16 divisors (see below), whose sum is σ = 5227956000. Its totient is φ = 2342108160.

The previous prime is 3521016241. The next prime is 3521016253. The reversal of 3521016243 is 3426101253.

3521016243 is a `hidden beast` number, since 35 + 2 + 1 + 0 + 1 + 624 + 3 = 666.

It is not a de Polignac number, because 3521016243 - 2¹ = 3521016241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3521016241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133098 + ... + 157343.

It is an arithmetic number, because the mean of its divisors is an integer number (326747250).

Almost surely, 2^3521016243 is an apocalyptic number.

3521016243 is a deficient number, since it is larger than the sum of its proper divisors (1706939757).

3521016243 is a wasteful number, since it uses less digits than its factorization.

3521016243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290899 (or 290893 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 3521016243 is about 59338.1516648438. The cubic root of 3521016243 is about 1521.3273612725.

Adding to 3521016243 its reverse (3426101253), we get a palindrome (6947117496).

The spelling of 3521016243 in words is "three billion, five hundred twenty-one million, sixteen thousand, two hundred forty-three".