142913 has 4 divisors (see below), whose sum is σ = 143748. Its totient is φ = 142080.

The previous prime is 142907. The next prime is 142939. The reversal of 142913 is 319241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 97969 + 44944 = 313^2 + 212^2 .

It is a cyclic number.

It is not a de Polignac number, because 142913 - 2⁴ = 142897 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (142903) 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, 56 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (35937).

2¹⁴²⁹¹³ is an apocalyptic number.

It is an amenable number.

142913 is a deficient number, since it is larger than the sum of its proper divisors (835).

142913 is an equidigital number, since it uses as much as digits as its factorization.

142913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834.

The product of its digits is 216, while the sum is 20.

The square root of 142913 is about 378.0383578422. The cubic root of 142913 is about 52.2826082484.

The spelling of 142913 in words is "one hundred forty-two thousand, nine hundred thirteen".