13333530 has 32 divisors (see below), whose sum is σ = 36572544. Its totient is φ = 3047616.

The previous prime is 13333517. The next prime is 13333543. The reversal of 13333530 is 3533331.

13333530 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13333517) and next prime (13333543).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13333497 and 13333506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31537 + ... + 31956.

It is an arithmetic number, because the mean of its divisors is an integer number (1142892).

Almost surely, 2^13333530 is an apocalyptic number.

13333530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13333530 is an abundant number, since it is smaller than the sum of its proper divisors (23239014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13333530 is a wasteful number, since it uses less digits than its factorization.

13333530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63510.

The product of its (nonzero) digits is 1215, while the sum is 21.

The square root of 13333530 is about 3651.5106462942. The cubic root of 13333530 is about 237.1273861642.

Adding to 13333530 its reverse (3533331), we get a palindrome (16866861).

The spelling of 13333530 in words is "thirteen million, three hundred thirty-three thousand, five hundred thirty".