13920233 has 2 divisors, whose sum is σ = 13920234. Its totient is φ = 13920232.

The previous prime is 13920227. The next prime is 13920239. The reversal of 13920233 is 33202931.

It is a balanced prime because it is at equal distance from previous prime (13920227) and next prime (13920239).

It can be written as a sum of positive squares in only one way, i.e., 13446889 + 473344 = 3667^2 + 688^2 .

It is an emirp because it is prime and its reverse (33202931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13920233 - 2⁸ = 13919977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13920199 and 13920208.

It is not a weakly prime, because it can be changed into another prime (13920239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6960116 + 6960117.

It is an arithmetic number, because the mean of its divisors is an integer number (6960117).

Almost surely, 2^13920233 is an apocalyptic number.

It is an amenable number.

13920233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13920233 is an equidigital number, since it uses as much as digits as its factorization.

13920233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 13920233 is about 3730.9828463824. The cubic root of 13920233 is about 240.5556166515. Note that the first 3 decimals are identical.

The spelling of 13920233 in words is "thirteen million, nine hundred twenty thousand, two hundred thirty-three".