16213433 has 2 divisors, whose sum is σ = 16213434. Its totient is φ = 16213432.

The previous prime is 16213411. The next prime is 16213481. The reversal of 16213433 is 33431261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14645929 + 1567504 = 3827^2 + 1252^2 .

It is a cyclic number.

It is not a de Polignac number, because 16213433 - 2¹⁰ = 16212409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16213399 and 16213408.

It is not a weakly prime, because it can be changed into another prime (16213033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8106716 + 8106717.

It is an arithmetic number, because the mean of its divisors is an integer number (8106717).

Almost surely, 2^16213433 is an apocalyptic number.

It is an amenable number.

16213433 is a deficient number, since it is larger than the sum of its proper divisors (1).

16213433 is an equidigital number, since it uses as much as digits as its factorization.

16213433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 23.

The square root of 16213433 is about 4026.5907415579. The cubic root of 16213433 is about 253.0997174972.

Adding to 16213433 its reverse (33431261), we get a palindrome (49644694).

The spelling of 16213433 in words is "sixteen million, two hundred thirteen thousand, four hundred thirty-three".