142147170 has 192 divisors, whose sum is σ = 440496000. Its totient is φ = 32503680.

The previous prime is 142147169. The next prime is 142147171. The reversal of 142147170 is 71741241.

It is an interprime number because it is at equal distance from previous prime (142147169) and next prime (142147171).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142147171) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620616 + ... + 620844.

It is an arithmetic number, because the mean of its divisors is an integer number (2294250).

Almost surely, 2^142147170 is an apocalyptic number.

142147170 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 142147170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220248000).

142147170 is an abundant number, since it is smaller than the sum of its proper divisors (298348830).

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

142147170 is a wasteful number, since it uses less digits than its factorization.

142147170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 142147170 is about 11922.5488046810. The cubic root of 142147170 is about 521.8905174011.

The spelling of 142147170 in words is "one hundred forty-two million, one hundred forty-seven thousand, one hundred seventy".