9481998142 has 4 divisors (see below), whose sum is σ = 14222997216. Its totient is φ = 4740999070.

The previous prime is 9481998131. The next prime is 9481998167. The reversal of 9481998142 is 2418991849.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2418991849 = 40289 ⋅60041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2370499534 + ... + 2370499537.

It is an arithmetic number, because the mean of its divisors is an integer number (3555749304).

Almost surely, 2^9481998142 is an apocalyptic number.

9481998142 is a deficient number, since it is larger than the sum of its proper divisors (4740999074).

9481998142 is a wasteful number, since it uses less digits than its factorization.

9481998142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740999073.

The product of its digits is 1492992, while the sum is 55.

The square root of 9481998142 is about 97375.5520754568. The cubic root of 9481998142 is about 2116.5731796711.

The spelling of 9481998142 in words is "nine billion, four hundred eighty-one million, nine hundred ninety-eight thousand, one hundred forty-two".