142949 has 2 divisors, whose sum is σ = 142950. Its totient is φ = 142948.

The previous prime is 142939. The next prime is 142963. The reversal of 142949 is 949241.

142949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 20449 = 350^2 + 143^2 .

It is an emirp because it is prime and its reverse (949241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142949 is a prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142949.

It is not a weakly prime, because it can be changed into another prime (142939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71474 + 71475.

It is an arithmetic number, because the mean of its divisors is an integer number (71475).

2¹⁴²⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

142949 is a deficient number, since it is larger than the sum of its proper divisors (1).

142949 is an equidigital number, since it uses as much as digits as its factorization.

142949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 142949 is about 378.0859690599. The cubic root of 142949 is about 52.2869979024.

Adding to 142949 its product of digits (2592), we get a palindrome (145541).

The spelling of 142949 in words is "one hundred forty-two thousand, nine hundred forty-nine".