9958142 has 4 divisors (see below), whose sum is σ = 14937216. Its totient is φ = 4979070.

The previous prime is 9958139. The next prime is 9958171. The reversal of 9958142 is 2418599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2418599 = 661 ⋅3659.

It is a junction number, because it is equal to n+sod(n) for n = 9958096 and 9958105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489534 + ... + 2489537.

It is an arithmetic number, because the mean of its divisors is an integer number (3734304).

Almost surely, 2^9958142 is an apocalyptic number.

9958142 is a deficient number, since it is larger than the sum of its proper divisors (4979074).

9958142 is a wasteful number, since it uses less digits than its factorization.

9958142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979073.

The product of its digits is 25920, while the sum is 38.

The square root of 9958142 is about 3155.6523889681. The cubic root of 9958142 is about 215.1424475156.

The spelling of 9958142 in words is "nine million, nine hundred fifty-eight thousand, one hundred forty-two".