133049143 has 6 divisors (see below), whose sum is σ = 134902104. Its totient is φ = 131221296.

The previous prime is 133049093. The next prime is 133049171. The reversal of 133049143 is 341940331.

It is a de Polignac number, because none of the positive numbers 2^k-133049143 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 (133049173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7155 + ... + 17812.

It is an arithmetic number, because the mean of its divisors is an integer number (22483684).

Almost surely, 2^133049143 is an apocalyptic number.

133049143 is a deficient number, since it is larger than the sum of its proper divisors (1852961).

133049143 is an frugal number, since it uses more digits than its factorization.

133049143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25113 (or 25040 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 133049143 is about 11534.6930171548. The cubic root of 133049143 is about 510.5097338585.

Adding to 133049143 its reverse (341940331), we get a palindrome (474989474).

The spelling of 133049143 in words is "one hundred thirty-three million, forty-nine thousand, one hundred forty-three".