842321151 has 48 divisors (see below), whose sum is σ = 1476993024. Its totient is φ = 451567872.

The previous prime is 842321143. The next prime is 842321159. The reversal of 842321151 is 151123248.

It is an interprime number because it is at equal distance from previous prime (842321143) and next prime (842321159).

It is not a de Polignac number, because 842321151 - 2³ = 842321143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842321159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 391986 + ... + 394128.

It is an arithmetic number, because the mean of its divisors is an integer number (30770688).

Almost surely, 2^842321151 is an apocalyptic number.

842321151 is a deficient number, since it is larger than the sum of its proper divisors (634671873).

842321151 is a wasteful number, since it uses less digits than its factorization.

842321151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540 (or 2537 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 842321151 is about 29022.7695267009. The cubic root of 842321151 is about 944.4070825046.

Adding to 842321151 its reverse (151123248), we get a palindrome (993444399).

The spelling of 842321151 in words is "eight hundred forty-two million, three hundred twenty-one thousand, one hundred fifty-one".