271994145 has 16 divisors (see below), whose sum is σ = 443403072. Its totient is φ = 142326080.

The previous prime is 271994119. The next prime is 271994147. The reversal of 271994145 is 541499172.

It is not a de Polignac number, because 271994145 - 2⁷ = 271994017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 271994097 and 271994106.

It is not an unprimeable number, because it can be changed into a prime (271994147) 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 15 ways as a sum of consecutive naturals, for example, 170271 + ... + 171860.

It is an arithmetic number, because the mean of its divisors is an integer number (27712692).

Almost surely, 2^271994145 is an apocalyptic number.

It is an amenable number.

271994145 is a deficient number, since it is larger than the sum of its proper divisors (171408927).

271994145 is a wasteful number, since it uses less digits than its factorization.

271994145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342192.

The product of its digits is 90720, while the sum is 42.

The square root of 271994145 is about 16492.2449957548. The cubic root of 271994145 is about 647.9177112204.

The spelling of 271994145 in words is "two hundred seventy-one million, nine hundred ninety-four thousand, one hundred forty-five".