142859997000 has 1024 divisors, whose sum is σ = 600956928000. Its totient is φ = 30699648000.

The previous prime is 142859996959. The next prime is 142859997041. The reversal of 142859997000 is 799958241.

142859997000 is a `hidden beast` number, since 1 + 42 + 8 + 599 + 9 + 7 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (142859996959) and next prime (142859997041).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 216782671 + ... + 216783329.

It is an arithmetic number, because the mean of its divisors is an integer number (586872000).

Almost surely, 2^142859997000 is an apocalyptic number.

142859997000 is a gapful number since it is divisible by the number (10) 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 142859997000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300478464000).

142859997000 is an abundant number, since it is smaller than the sum of its proper divisors (458096931000).

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

142859997000 is a wasteful number, since it uses less digits than its factorization.

142859997000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 142859997000 in words is "one hundred forty-two billion, eight hundred fifty-nine million, nine hundred ninety-seven thousand".