142000129 has 8 divisors (see below), whose sum is σ = 150480000. Its totient is φ = 133620912.

The previous prime is 142000127. The next prime is 142000139. The reversal of 142000129 is 921000241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142000129 - 2¹ = 142000127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (142000121) 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, 22249 + ... + 27910.

It is an arithmetic number, because the mean of its divisors is an integer number (18810000).

It is a Proth number, since it is equal to 8667 ⋅ 2¹⁴ + 1 and 8667 < 2¹⁴.

Almost surely, 2^142000129 is an apocalyptic number.

142000129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

142000129 is a deficient number, since it is larger than the sum of its proper divisors (8479871).

142000129 is a wasteful number, since it uses less digits than its factorization.

142000129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50327.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 142000129 is about 11916.3807005315. The cubic root of 142000129 is about 521.7105026103.

It can be divided in two parts, 142000 and 129, that added together give a square (142129 = 377²).

The spelling of 142000129 in words is "one hundred forty-two million, one hundred twenty-nine", and thus it is an aban number.