142013569 has 4 divisors (see below), whose sum is σ = 148188096. Its totient is φ = 135839044.

The previous prime is 142013549. The next prime is 142013591. The reversal of 142013569 is 965310241.

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 not a de Polignac number, because 142013569 - 2¹⁵ = 141980801 is a prime.

It is a super-2 number, since 2×142013569² = 40335707560235522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142013569.

It is not an unprimeable number, because it can be changed into a prime (142013519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3087229 + ... + 3087274.

It is an arithmetic number, because the mean of its divisors is an integer number (37047024).

Almost surely, 2^142013569 is an apocalyptic number.

It is an amenable number.

142013569 is a deficient number, since it is larger than the sum of its proper divisors (6174527).

142013569 is an equidigital number, since it uses as much as digits as its factorization.

142013569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174526.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 142013569 is about 11916.9446168051. The cubic root of 142013569 is about 521.7269616750.

The spelling of 142013569 in words is "one hundred forty-two million, thirteen thousand, five hundred sixty-nine".