271990 has 16 divisors (see below), whose sum is σ = 498960. Its totient is φ = 106720.

The previous prime is 271981. The next prime is 272003. The reversal of 271990 is 99172.

271990 = T₆₅ + T₆₆ + ... + T₁₂₃.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

271990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360 + ... + 820.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

2²⁷¹⁹⁹⁰ is an apocalyptic number.

271990 is a deficient number, since it is larger than the sum of its proper divisors (226970).

271990 is a wasteful number, since it uses less digits than its factorization.

271990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 271990 is about 521.5266052657. The cubic root of 271990 is about 64.7914419933.

It can be divided in two parts, 2719 and 90, that added together give a square (2809 = 53²).

The spelling of 271990 in words is "two hundred seventy-one thousand, nine hundred ninety".