142475868 has 48 divisors (see below), whose sum is σ = 374080000. Its totient is φ = 46887984.

The previous prime is 142475843. The next prime is 142475887. The reversal of 142475868 is 868574241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183 + ... + 16881.

Almost surely, 2^142475868 is an apocalyptic number.

142475868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142475868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187040000).

142475868 is an abundant number, since it is smaller than the sum of its proper divisors (231604132).

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

142475868 is a wasteful number, since it uses less digits than its factorization.

142475868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16791 (or 16783 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 142475868 is about 11936.3255652650. The cubic root of 142475868 is about 522.2924771300.

The spelling of 142475868 in words is "one hundred forty-two million, four hundred seventy-five thousand, eight hundred sixty-eight".