842149331 has 8 divisors (see below), whose sum is σ = 899705280. Its totient is φ = 785916648.

The previous prime is 842149327. The next prime is 842149361. The reversal of 842149331 is 133941248.

842149331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 842149331 - 2² = 842149327 is a prime.

It is a super-2 number, since 2×842149331² = 1418430991407495122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 842149291 and 842149300.

It is not an unprimeable number, because it can be changed into a prime (842149361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329501 + ... + 332046.

It is an arithmetic number, because the mean of its divisors is an integer number (112463160).

Almost surely, 2^842149331 is an apocalyptic number.

842149331 is a deficient number, since it is larger than the sum of its proper divisors (57555949).

842149331 is a wasteful number, since it uses less digits than its factorization.

842149331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661633.

The product of its digits is 20736, while the sum is 35.

The square root of 842149331 is about 29019.8092860722. The cubic root of 842149331 is about 944.3428635071.

The spelling of 842149331 in words is "eight hundred forty-two million, one hundred forty-nine thousand, three hundred thirty-one".