142149613 has 2 divisors, whose sum is σ = 142149614. Its totient is φ = 142149612.

The previous prime is 142149599. The next prime is 142149629. The reversal of 142149613 is 316941241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142038724 + 110889 = 11918^2 + 333^2 .

It is a cyclic number.

It is not a de Polignac number, because 142149613 - 2⁹ = 142149101 is a prime.

It is equal to p_8026618 and since 142149613 and 8026618 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142149653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71074806 + 71074807.

It is an arithmetic number, because the mean of its divisors is an integer number (71074807).

Almost surely, 2^142149613 is an apocalyptic number.

It is an amenable number.

142149613 is a deficient number, since it is larger than the sum of its proper divisors (1).

142149613 is an equidigital number, since it uses as much as digits as its factorization.

142149613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 142149613 is about 11922.6512571659. The cubic root of 142149613 is about 521.8935071926.

The spelling of 142149613 in words is "one hundred forty-two million, one hundred forty-nine thousand, six hundred thirteen".