133313530 has 16 divisors (see below), whose sum is σ = 274245120. Its totient is φ = 45707472.

The previous prime is 133313503. The next prime is 133313533. The reversal of 133313530 is 35313331.

It is not an unprimeable number, because it can be changed into a prime (133313533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952170 + ... + 952309.

It is an arithmetic number, because the mean of its divisors is an integer number (17140320).

Almost surely, 2^133313530 is an apocalyptic number.

133313530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133313530 is an abundant number, since it is smaller than the sum of its proper divisors (140931590).

133313530 is a wasteful number, since it uses less digits than its factorization.

133313530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904493.

The product of its (nonzero) digits is 1215, while the sum is 22.

The square root of 133313530 is about 11546.1478424624. The cubic root of 133313530 is about 510.8476612082.

Adding to 133313530 its reverse (35313331), we get a palindrome (168626861).

It can be divided in two parts, 13331 and 3530, that added together give a palindrome (16861).

The spelling of 133313530 in words is "one hundred thirty-three million, three hundred thirteen thousand, five hundred thirty".