142149379 has 2 divisors, whose sum is σ = 142149380. Its totient is φ = 142149378.

The previous prime is 142149331. The next prime is 142149389. The reversal of 142149379 is 973941241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142149379 - 2²⁵ = 108594947 is a prime.

It is not a weakly prime, because it can be changed into another prime (142149389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71074689 + 71074690.

It is an arithmetic number, because the mean of its divisors is an integer number (71074690).

Almost surely, 2^142149379 is an apocalyptic number.

142149379 is a deficient number, since it is larger than the sum of its proper divisors (1).

142149379 is an equidigital number, since it uses as much as digits as its factorization.

142149379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 142149379 is about 11922.6414439083. The cubic root of 142149379 is about 521.8932208203.

The spelling of 142149379 in words is "one hundred forty-two million, one hundred forty-nine thousand, three hundred seventy-nine".