142887860 has 24 divisors (see below), whose sum is σ = 300325536. Its totient is φ = 57105440.

The previous prime is 142887859. The next prime is 142887863. The reversal of 142887860 is 68788241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142887863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28115 + ... + 32805.

It is an arithmetic number, because the mean of its divisors is an integer number (12513564).

Almost surely, 2^142887860 is an apocalyptic number.

142887860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142887860 is an abundant number, since it is smaller than the sum of its proper divisors (157437676).

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

142887860 is a wasteful number, since it uses less digits than its factorization.

142887860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223 (or 6221 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 44.

The square root of 142887860 is about 11953.5710145546. The cubic root of 142887860 is about 522.7954236950.

The spelling of 142887860 in words is "one hundred forty-two million, eight hundred eighty-seven thousand, eight hundred sixty".