141569 has 4 divisors (see below), whose sum is σ = 149040. Its totient is φ = 134100.

The previous prime is 141551. The next prime is 141587. The reversal of 141569 is 965141.

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, and also an emirpimes, since its reverse is a distinct semiprime: 965141 = 17 ⋅56773.

It is an interprime number because it is at equal distance from previous prime (141551) and next prime (141587).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-141569 is a prime.

It is a super-2 number, since 2×141569² = 40083563522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (141509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3707 + ... + 3744.

It is an arithmetic number, because the mean of its divisors is an integer number (37260).

2¹⁴¹⁵⁶⁹ is an apocalyptic number.

141569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

141569 is a deficient number, since it is larger than the sum of its proper divisors (7471).

141569 is an equidigital number, since it uses as much as digits as its factorization.

141569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470.

The product of its digits is 1080, while the sum is 26.

The square root of 141569 is about 376.2565614046. The cubic root of 141569 is about 52.1181975991.

The spelling of 141569 in words is "one hundred forty-one thousand, five hundred sixty-nine".