13331047 has 2 divisors, whose sum is σ = 13331048. Its totient is φ = 13331046.

The previous prime is 13331011. The next prime is 13331069. The reversal of 13331047 is 74013331.

It is a happy number.

It is an a-pointer prime, because the next prime (13331069) can be obtained adding 13331047 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13331047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13331447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665523 + 6665524.

It is an arithmetic number, because the mean of its divisors is an integer number (6665524).

Almost surely, 2^13331047 is an apocalyptic number.

13331047 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331047 is an equidigital number, since it uses as much as digits as its factorization.

13331047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13331047 is about 3651.1706341939. The cubic root of 13331047 is about 237.1126657850.

Adding to 13331047 its reverse (74013331), we get a palindrome (87344378).

The spelling of 13331047 in words is "thirteen million, three hundred thirty-one thousand, forty-seven".