271515138 has 16 divisors (see below), whose sum is σ = 566640576. Its totient is φ = 86570000.

The previous prime is 271515137. The next prime is 271515173. The reversal of 271515138 is 831515172.

It is a junction number, because it is equal to n+sod(n) for n = 271515099 and 271515108.

It is not an unprimeable number, because it can be changed into a prime (271515137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983613 + ... + 983888.

It is an arithmetic number, because the mean of its divisors is an integer number (35415036).

Almost surely, 2^271515138 is an apocalyptic number.

271515138 is an abundant number, since it is smaller than the sum of its proper divisors (295125438).

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

271515138 is a wasteful number, since it uses less digits than its factorization.

271515138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967529.

The product of its digits is 8400, while the sum is 33.

The square root of 271515138 is about 16477.7164073181. The cubic root of 271515138 is about 647.5371399317.

The spelling of 271515138 in words is "two hundred seventy-one million, five hundred fifteen thousand, one hundred thirty-eight".