142542403 has 2 divisors, whose sum is σ = 142542404. Its totient is φ = 142542402.

The previous prime is 142542347. The next prime is 142542409. The reversal of 142542403 is 304245241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142542403 - 2⁹ = 142541891 is a prime.

It is not a weakly prime, because it can be changed into another prime (142542409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71271201 + 71271202.

It is an arithmetic number, because the mean of its divisors is an integer number (71271202).

Almost surely, 2^142542403 is an apocalyptic number.

142542403 is a deficient number, since it is larger than the sum of its proper divisors (1).

142542403 is an equidigital number, since it uses as much as digits as its factorization.

142542403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 142542403 is about 11939.1123204366. The cubic root of 142542403 is about 522.3737665030.

Adding to 142542403 its reverse (304245241), we get a palindrome (446787644).

The spelling of 142542403 in words is "one hundred forty-two million, five hundred forty-two thousand, four hundred three".