842154747 has 16 divisors (see below), whose sum is σ = 1283764992. Its totient is φ = 481050720.

The previous prime is 842154737. The next prime is 842154811. The reversal of 842154747 is 747451248.

842154747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 842154747 - 2⁸ = 842154491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 842154699 and 842154708.

It is not an unprimeable number, because it can be changed into a prime (842154737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66888 + ... + 78474.

It is an arithmetic number, because the mean of its divisors is an integer number (80235312).

Almost surely, 2^842154747 is an apocalyptic number.

842154747 is a deficient number, since it is larger than the sum of its proper divisors (441610245).

842154747 is a wasteful number, since it uses less digits than its factorization.

842154747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058.

The product of its digits is 250880, while the sum is 42.

The square root of 842154747 is about 29019.9026014906. The cubic root of 842154747 is about 944.3448879106.

The spelling of 842154747 in words is "eight hundred forty-two million, one hundred fifty-four thousand, seven hundred forty-seven".