142870 has 32 divisors (see below), whose sum is σ = 318528. Its totient is φ = 44928.

The previous prime is 142867. The next prime is 142871. The reversal of 142870 is 78241.

142870 = T₄ + T₅ + ... + T₉₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (9954).

2¹⁴²⁸⁷⁰ is an apocalyptic number.

142870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142870 is an abundant number, since it is smaller than the sum of its proper divisors (175658).

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

142870 is a wasteful number, since it uses less digits than its factorization.

142870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 142870 is about 377.9814810278. The cubic root of 142870 is about 52.2773640843.

The spelling of 142870 in words is "one hundred forty-two thousand, eight hundred seventy".