142478133 has 12 divisors (see below), whose sum is σ = 220986720. Its totient is φ = 81415992.

The previous prime is 142478117. The next prime is 142478143. The reversal of 142478133 is 331874241.

142478133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142478133 - 2⁴ = 142478117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142478094 and 142478103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142478143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484473 + ... + 484766.

It is an arithmetic number, because the mean of its divisors is an integer number (18415560).

Almost surely, 2^142478133 is an apocalyptic number.

It is an amenable number.

142478133 is a deficient number, since it is larger than the sum of its proper divisors (78508587).

142478133 is an equidigital number, since it uses as much as digits as its factorization.

142478133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969256 (or 969249 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 142478133 is about 11936.4204433322. The cubic root of 142478133 is about 522.2952448178.

The spelling of 142478133 in words is "one hundred forty-two million, four hundred seventy-eight thousand, one hundred thirty-three".