142271000 has 32 divisors (see below), whose sum is σ = 332916480. Its totient is φ = 56908000.

The previous prime is 142270991. The next prime is 142271009. The reversal of 142271000 is 172241.

It is an interprime number because it is at equal distance from previous prime (142270991) and next prime (142271009).

It is a self number, because there is not a number n which added to its sum of digits gives 142271000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142271009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70136 + ... + 72135.

It is an arithmetic number, because the mean of its divisors is an integer number (10403640).

Almost surely, 2^142271000 is an apocalyptic number.

142271000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142271000 is an abundant number, since it is smaller than the sum of its proper divisors (190645480).

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

142271000 is a wasteful number, since it uses less digits than its factorization.

142271000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142292 (or 142278 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 142271000 is about 11927.7407751845. The cubic root of 142271000 is about 522.0420198799.

The spelling of 142271000 in words is "one hundred forty-two million, two hundred seventy-one thousand".