142836903 has 12 divisors (see below), whose sum is σ = 225076488. Its totient is φ = 86567760.

The previous prime is 142836899. The next prime is 142836917. The reversal of 142836903 is 309638241.

It is not a de Polignac number, because 142836903 - 2² = 142836899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142836943) 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 in 11 ways as a sum of consecutive naturals, for example, 721300 + ... + 721497.

It is an arithmetic number, because the mean of its divisors is an integer number (18756374).

Almost surely, 2^142836903 is an apocalyptic number.

142836903 is a deficient number, since it is larger than the sum of its proper divisors (82239585).

142836903 is a wasteful number, since it uses less digits than its factorization.

142836903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442814 (or 1442811 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 142836903 is about 11951.4393693814. The cubic root of 142836903 is about 522.7332694671.

The spelling of 142836903 in words is "one hundred forty-two million, eight hundred thirty-six thousand, nine hundred three".