133143105 has 16 divisors (see below), whose sum is σ = 216031104. Its totient is φ = 70008960.

The previous prime is 133143103. The next prime is 133143121. The reversal of 133143105 is 501341331.

It is not a de Polignac number, because 133143105 - 2¹ = 133143103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133143103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61444 + ... + 63573.

It is an arithmetic number, because the mean of its divisors is an integer number (13501944).

Almost surely, 2^133143105 is an apocalyptic number.

133143105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133143105 is a deficient number, since it is larger than the sum of its proper divisors (82887999).

133143105 is a wasteful number, since it uses less digits than its factorization.

133143105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125096.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133143105 is about 11538.7653152320. The cubic root of 133143105 is about 510.6298830175.

Adding to 133143105 its reverse (501341331), we get a palindrome (634484436).

The spelling of 133143105 in words is "one hundred thirty-three million, one hundred forty-three thousand, one hundred five".