142735169 has 4 divisors (see below), whose sum is σ = 143133120. Its totient is φ = 142337220.

The previous prime is 142735157. The next prime is 142735249. The reversal of 142735169 is 961537241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142735169 is a prime.

It is a super-2 number, since 2×142735169² = 40746656938917122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142735139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198437 + ... + 199154.

It is an arithmetic number, because the mean of its divisors is an integer number (35783280).

Almost surely, 2^142735169 is an apocalyptic number.

It is an amenable number.

142735169 is a deficient number, since it is larger than the sum of its proper divisors (397951).

142735169 is an equidigital number, since it uses as much as digits as its factorization.

142735169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397950.

The product of its digits is 45360, while the sum is 38.

The square root of 142735169 is about 11947.1824711938. The cubic root of 142735169 is about 522.6091363337.

The spelling of 142735169 in words is "one hundred forty-two million, seven hundred thirty-five thousand, one hundred sixty-nine".