133511733 has 12 divisors (see below), whose sum is σ = 199993248. Its totient is φ = 89007660.

The previous prime is 133511731. The next prime is 133511743. The reversal of 133511733 is 337115331.

It is not a de Polignac number, because 133511733 - 2¹ = 133511731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 133511697 and 133511706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133511731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274473 + ... + 274958.

It is an arithmetic number, because the mean of its divisors is an integer number (16666104).

Almost surely, 2^133511733 is an apocalyptic number.

It is an amenable number.

133511733 is a deficient number, since it is larger than the sum of its proper divisors (66481515).

133511733 is an frugal number, since it uses more digits than its factorization.

133511733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549446 (or 549434 counting only the distinct ones).

The product of its digits is 2835, while the sum is 27.

The square root of 133511733 is about 11554.7277337028. The cubic root of 133511733 is about 511.1007022963.

The spelling of 133511733 in words is "one hundred thirty-three million, five hundred eleven thousand, seven hundred thirty-three".