142313784 has 32 divisors (see below), whose sum is σ = 357761040. Its totient is φ = 47175840.

The previous prime is 142313767. The next prime is 142313861. The reversal of 142313784 is 487313241.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 786174 + ... + 786354.

Almost surely, 2^142313784 is an apocalyptic number.

It is an amenable number.

142313784 is an abundant number, since it is smaller than the sum of its proper divisors (215447256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142313784 is an frugal number, since it uses more digits than its factorization.

142313784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 186 counting only the distinct ones).

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

The square root of 142313784 is about 11929.5341065777. The cubic root of 142313784 is about 522.0943444513.

The spelling of 142313784 in words is "one hundred forty-two million, three hundred thirteen thousand, seven hundred eighty-four".