133530416 has 10 divisors (see below), whose sum is σ = 258715212. Its totient is φ = 66765200.

The previous prime is 133530407. The next prime is 133530421. The reversal of 133530416 is 614035331.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4172810 + ... + 4172841.

Almost surely, 2^133530416 is an apocalyptic number.

133530416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133530416 is a deficient number, since it is larger than the sum of its proper divisors (125184796).

133530416 is an equidigital number, since it uses as much as digits as its factorization.

133530416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345659 (or 8345653 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 133530416 is about 11555.5361623769. The cubic root of 133530416 is about 511.1245415220.

Adding to 133530416 its reverse (614035331), we get a palindrome (747565747).

The spelling of 133530416 in words is "one hundred thirty-three million, five hundred thirty thousand, four hundred sixteen".