133511413 has 8 divisors (see below), whose sum is σ = 152979840. Its totient is φ = 114141840.

The previous prime is 133511377. The next prime is 133511419. The reversal of 133511413 is 314115331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133511413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133511419) 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, 21793 + ... + 27238.

It is an arithmetic number, because the mean of its divisors is an integer number (19122480).

Almost surely, 2^133511413 is an apocalyptic number.

It is an amenable number.

133511413 is a deficient number, since it is larger than the sum of its proper divisors (19468427).

133511413 is an equidigital number, since it uses as much as digits as its factorization.

133511413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49427.

The product of its digits is 540, while the sum is 22.

The square root of 133511413 is about 11554.7138865486. The cubic root of 133511413 is about 511.1002939617.

Adding to 133511413 its reverse (314115331), we get a palindrome (447626744).

The spelling of 133511413 in words is "one hundred thirty-three million, five hundred eleven thousand, four hundred thirteen".