142854403 has 4 divisors (see below), whose sum is σ = 149065488. Its totient is φ = 136643320.

The previous prime is 142854401. The next prime is 142854409. The reversal of 142854403 is 304458241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304458241 = 389 ⋅782669.

It is a cyclic number.

It is not a de Polignac number, because 142854403 - 2¹ = 142854401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142854401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3105508 + ... + 3105553.

It is an arithmetic number, because the mean of its divisors is an integer number (37266372).

Almost surely, 2^142854403 is an apocalyptic number.

142854403 is a deficient number, since it is larger than the sum of its proper divisors (6211085).

142854403 is an equidigital number, since it uses as much as digits as its factorization.

142854403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211084.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 142854403 is about 11952.1714763469. The cubic root of 142854403 is about 522.7546165617.

The spelling of 142854403 in words is "one hundred forty-two million, eight hundred fifty-four thousand, four hundred three".