9906142 has 8 divisors (see below), whose sum is σ = 14877432. Its totient is φ = 4947000.

The previous prime is 9906119. The next prime is 9906157. The reversal of 9906142 is 2416099.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609 + ... + 4492.

It is an arithmetic number, because the mean of its divisors is an integer number (1859679).

Almost surely, 2^9906142 is an apocalyptic number.

9906142 is a deficient number, since it is larger than the sum of its proper divisors (4971290).

9906142 is a wasteful number, since it uses less digits than its factorization.

9906142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 9906142 is about 3147.4024210450. The cubic root of 9906142 is about 214.7673127105.

The spelling of 9906142 in words is "nine million, nine hundred six thousand, one hundred forty-two".