135554143 has 4 divisors (see below), whose sum is σ = 135580600. Its totient is φ = 135527688.

The previous prime is 135554137. The next prime is 135554147. The reversal of 135554143 is 341455531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135554143 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 (135554147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805 + ... + 16702.

It is an arithmetic number, because the mean of its divisors is an integer number (33895150).

Almost surely, 2^135554143 is an apocalyptic number.

135554143 is a deficient number, since it is larger than the sum of its proper divisors (26457).

135554143 is an equidigital number, since it uses as much as digits as its factorization.

135554143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26456.

The product of its digits is 18000, while the sum is 31.

The square root of 135554143 is about 11642.7721355354. The cubic root of 135554143 is about 513.6937303965.

The spelling of 135554143 in words is "one hundred thirty-five million, five hundred fifty-four thousand, one hundred forty-three".