142331403 has 8 divisors (see below), whose sum is σ = 189858816. Its totient is φ = 94845800.

The previous prime is 142331401. The next prime is 142331407. The reversal of 142331403 is 304133241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142331403 - 2¹ = 142331401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142331403.

It is not an unprimeable number, because it can be changed into a prime (142331401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1383 + ... + 16928.

It is an arithmetic number, because the mean of its divisors is an integer number (23732352).

Almost surely, 2^142331403 is an apocalyptic number.

142331403 is a deficient number, since it is larger than the sum of its proper divisors (47527413).

142331403 is a wasteful number, since it uses less digits than its factorization.

142331403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20905.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 142331403 is about 11930.2725450846. The cubic root of 142331403 is about 522.1158893324.

Adding to 142331403 its reverse (304133241), we get a palindrome (446464644).

The spelling of 142331403 in words is "one hundred forty-two million, three hundred thirty-one thousand, four hundred three".