142998870 has 64 divisors (see below), whose sum is σ = 393278976. Its totient is φ = 32597760.

The previous prime is 142998851. The next prime is 142998871. The reversal of 142998870 is 78899241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142998871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108757 + ... + 110063.

It is an arithmetic number, because the mean of its divisors is an integer number (6144984).

Almost surely, 2^142998870 is an apocalyptic number.

142998870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142998870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196639488).

142998870 is an abundant number, since it is smaller than the sum of its proper divisors (250280106).

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

142998870 is a wasteful number, since it uses less digits than its factorization.

142998870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 142998870 is about 11958.2134953345. The cubic root of 142998870 is about 522.9307757516.

The spelling of 142998870 in words is "one hundred forty-two million, nine hundred ninety-eight thousand, eight hundred seventy".