142729205 has 4 divisors (see below), whose sum is σ = 171275052. Its totient is φ = 114183360.

The previous prime is 142729193. The next prime is 142729217. The reversal of 142729205 is 502927241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502927241 = 13681 ⋅36761.

It is an interprime number because it is at equal distance from previous prime (142729193) and next prime (142729217).

It can be written as a sum of positive squares in 2 ways, for example, as 33443089 + 109286116 = 5783^2 + 10454^2 .

It is not a de Polignac number, because 142729205 - 2⁴ = 142729189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14272916 + ... + 14272925.

It is an arithmetic number, because the mean of its divisors is an integer number (42818763).

Almost surely, 2^142729205 is an apocalyptic number.

It is an amenable number.

142729205 is a deficient number, since it is larger than the sum of its proper divisors (28545847).

142729205 is an equidigital number, since it uses as much as digits as its factorization.

142729205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28545846.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 142729205 is about 11946.9328699880. The cubic root of 142729205 is about 522.6018573888.

The spelling of 142729205 in words is "one hundred forty-two million, seven hundred twenty-nine thousand, two hundred five".