142186374 has 96 divisors (see below), whose sum is σ = 355461120. Its totient is φ = 42078960.

The previous prime is 142186357. The next prime is 142186433. The reversal of 142186374 is 473681241.

142186374 is a `hidden beast` number, since 1 + 4 + 2 + 18 + 637 + 4 = 666.

142186374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 306867 + ... + 307329.

It is an arithmetic number, because the mean of its divisors is an integer number (3702720).

Almost surely, 2^142186374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142186374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177730560).

142186374 is an abundant number, since it is smaller than the sum of its proper divisors (213274746).

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

142186374 is a wasteful number, since it uses less digits than its factorization.

142186374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 526 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 142186374 is about 11924.1928028693. The cubic root of 142186374 is about 521.9384918939.

The spelling of 142186374 in words is "one hundred forty-two million, one hundred eighty-six thousand, three hundred seventy-four".