271156842 has 64 divisors (see below), whose sum is σ = 660182400. Its totient is φ = 81815040.

The previous prime is 271156841. The next prime is 271156859. The reversal of 271156842 is 248651172.

It is a junction number, because it is equal to n+sod(n) for n = 271156797 and 271156806.

It is not an unprimeable number, because it can be changed into a prime (271156841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158938 + ... + 160634.

It is an arithmetic number, because the mean of its divisors is an integer number (10315350).

Almost surely, 2^271156842 is an apocalyptic number.

271156842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 271156842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330091200).

271156842 is an abundant number, since it is smaller than the sum of its proper divisors (389025558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

271156842 is a wasteful number, since it uses less digits than its factorization.

271156842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1982 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 271156842 is about 16466.8406805920. The cubic root of 271156842 is about 647.2521808702.

The spelling of 271156842 in words is "two hundred seventy-one million, one hundred fifty-six thousand, eight hundred forty-two".