142184889 has 112 divisors (see below), whose sum is σ = 283305600. Its totient is φ = 69050880.

The previous prime is 142184869. The next prime is 142184897. The reversal of 142184889 is 988481241.

142184889 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 142184889 - 2⁵ = 142184857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142184869) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 954187 + ... + 954335.

Almost surely, 2^142184889 is an apocalyptic number.

It is an amenable number.

142184889 is a deficient number, since it is larger than the sum of its proper divisors (141120711).

142184889 is a wasteful number, since it uses less digits than its factorization.

142184889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 187 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 142184889 is about 11924.1305343409. The cubic root of 142184889 is about 521.9366748390.

The spelling of 142184889 in words is "one hundred forty-two million, one hundred eighty-four thousand, eight hundred eighty-nine".