133145343 has 32 divisors (see below), whose sum is σ = 210885120. Its totient is φ = 82730880.

The previous prime is 133145323. The next prime is 133145347. The reversal of 133145343 is 343541331.

133145343 is a `hidden beast` number, since 1 + 3 + 314 + 5 + 343 = 666.

It is not a de Polignac number, because 133145343 - 2⁸ = 133145087 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133145347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47758 + ... + 50468.

It is an arithmetic number, because the mean of its divisors is an integer number (6590160).

Almost surely, 2^133145343 is an apocalyptic number.

133145343 is a deficient number, since it is larger than the sum of its proper divisors (77739777).

133145343 is a wasteful number, since it uses less digits than its factorization.

133145343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844 (or 2838 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 133145343 is about 11538.8622922713. The cubic root of 133145343 is about 510.6327440576.

Adding to 133145343 its reverse (343541331), we get a palindrome (476686674).

The spelling of 133145343 in words is "one hundred thirty-three million, one hundred forty-five thousand, three hundred forty-three".