135446943 has 4 divisors (see below), whose sum is σ = 180595928. Its totient is φ = 90297960.

The previous prime is 135446933. The next prime is 135446951. The reversal of 135446943 is 349644531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349644531 = 3 ⋅116548177.

It is not a de Polignac number, because 135446943 - 2⁵ = 135446911 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 (135446923) 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, 22574488 + ... + 22574493.

It is an arithmetic number, because the mean of its divisors is an integer number (45148982).

Almost surely, 2^135446943 is an apocalyptic number.

135446943 is a deficient number, since it is larger than the sum of its proper divisors (45148985).

135446943 is an equidigital number, since it uses as much as digits as its factorization.

135446943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45148984.

The product of its digits is 155520, while the sum is 39.

The square root of 135446943 is about 11638.1675103944. The cubic root of 135446943 is about 513.5582802374.

The spelling of 135446943 in words is "one hundred thirty-five million, four hundred forty-six thousand, nine hundred forty-three".