9139942 has 8 divisors (see below), whose sum is σ = 15668496. Its totient is φ = 3917112.

The previous prime is 9139927. The next prime is 9139943. The reversal of 9139942 is 2499319.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139943) 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, 326413 + ... + 326440.

It is an arithmetic number, because the mean of its divisors is an integer number (1958562).

Almost surely, 2^9139942 is an apocalyptic number.

9139942 is a deficient number, since it is larger than the sum of its proper divisors (6528554).

9139942 is a wasteful number, since it uses less digits than its factorization.

9139942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652862.

The product of its digits is 17496, while the sum is 37.

The square root of 9139942 is about 3023.2336992036. The cubic root of 9139942 is about 209.0809573198.

The spelling of 9139942 in words is "nine million, one hundred thirty-nine thousand, nine hundred forty-two".