142361 has 4 divisors (see below), whose sum is σ = 147300. Its totient is φ = 137424.

The previous prime is 142357. The next prime is 142369. The reversal of 142361 is 163241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118336 + 24025 = 344^2 + 155^2 .

It is a cyclic number.

It is not a de Polignac number, because 142361 - 2² = 142357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2426 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (36825).

2¹⁴²³⁶¹ is an apocalyptic number.

It is an amenable number.

142361 is a deficient number, since it is larger than the sum of its proper divisors (4939).

142361 is an equidigital number, since it uses as much as digits as its factorization.

142361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its digits is 144, while the sum is 17.

The square root of 142361 is about 377.3075668470. The cubic root of 142361 is about 52.2152077160.

The spelling of 142361 in words is "one hundred forty-two thousand, three hundred sixty-one".