142686352 has 20 divisors (see below), whose sum is σ = 291005680. Its totient is φ = 67588128.

The previous prime is 142686347. The next prime is 142686353. The reversal of 142686352 is 253686241.

It is not an unprimeable number, because it can be changed into a prime (142686353) 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, 234378 + ... + 234985.

It is an arithmetic number, because the mean of its divisors is an integer number (14550284).

Almost surely, 2^142686352 is an apocalyptic number.

It is an amenable number.

142686352 is an abundant number, since it is smaller than the sum of its proper divisors (148319328).

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

142686352 is a wasteful number, since it uses less digits than its factorization.

142686352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469390 (or 469384 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 142686352 is about 11945.1392624783. The cubic root of 142686352 is about 522.5495501798.

It can be divided in two parts, 1426 and 86352, that added together give a palindrome (87778).

The spelling of 142686352 in words is "one hundred forty-two million, six hundred eighty-six thousand, three hundred fifty-two".