142545 has 32 divisors (see below), whose sum is σ = 266112. Its totient is φ = 64512.

The previous prime is 142543. The next prime is 142547. The reversal of 142545 is 545241.

142545 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (142543) and next prime (142547).

It is not a de Polignac number, because 142545 - 2¹ = 142543 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142545.

It is not an unprimeable number, because it can be changed into a prime (142543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3294 + ... + 3336.

It is an arithmetic number, because the mean of its divisors is an integer number (8316).

2¹⁴²⁵⁴⁵ is an apocalyptic number.

142545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142545 is a deficient number, since it is larger than the sum of its proper divisors (123567).

142545 is a wasteful number, since it uses less digits than its factorization.

142545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81.

The product of its digits is 800, while the sum is 21.

The square root of 142545 is about 377.5513210148. The cubic root of 142545 is about 52.2376938884.

Adding to 142545 its reverse (545241), we get a palindrome (687786).

The spelling of 142545 in words is "one hundred forty-two thousand, five hundred forty-five".