142871403 has 18 divisors (see below), whose sum is σ = 195276564. Its totient is φ = 92915064.

The previous prime is 142871401. The next prime is 142871419. The reversal of 142871403 is 304178241.

It is not a de Polignac number, because 142871403 - 2¹ = 142871401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142871401) 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 17 ways as a sum of consecutive naturals, for example, 1387050 + ... + 1387152.

It is an arithmetic number, because the mean of its divisors is an integer number (10848698).

Almost surely, 2^142871403 is an apocalyptic number.

142871403 is a deficient number, since it is larger than the sum of its proper divisors (52405161).

142871403 is an frugal number, since it uses more digits than its factorization.

142871403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 142871403 is about 11952.8826230328. The cubic root of 142871403 is about 522.7753520700.

The spelling of 142871403 in words is "one hundred forty-two million, eight hundred seventy-one thousand, four hundred three".