142403005 has 16 divisors (see below), whose sum is σ = 187701120. Its totient is φ = 103232448.

The previous prime is 142403003. The next prime is 142403029. The reversal of 142403005 is 500304241.

It is a cyclic number.

It is not a de Polignac number, because 142403005 - 2¹ = 142403003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142403003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30402 + ... + 34771.

It is an arithmetic number, because the mean of its divisors is an integer number (11731320).

Almost surely, 2^142403005 is an apocalyptic number.

It is an amenable number.

142403005 is a deficient number, since it is larger than the sum of its proper divisors (45298115).

142403005 is a wasteful number, since it uses less digits than its factorization.

142403005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65220.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 142403005 is about 11933.2730212629. The cubic root of 142403005 is about 522.2034274627.

Adding to 142403005 its reverse (500304241), we get a palindrome (642707246).

The spelling of 142403005 in words is "one hundred forty-two million, four hundred three thousand, five".