271661051 has 2 divisors, whose sum is σ = 271661052. Its totient is φ = 271661050.

The previous prime is 271661041. The next prime is 271661077. The reversal of 271661051 is 150166172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 271661051 - 2¹⁰ = 271660027 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (271661011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135830525 + 135830526.

It is an arithmetic number, because the mean of its divisors is an integer number (135830526).

Almost surely, 2^271661051 is an apocalyptic number.

271661051 is a deficient number, since it is larger than the sum of its proper divisors (1).

271661051 is an equidigital number, since it uses as much as digits as its factorization.

271661051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 271661051 is about 16482.1433982356. The cubic root of 271661051 is about 647.6531152534.

The spelling of 271661051 in words is "two hundred seventy-one million, six hundred sixty-one thousand, fifty-one".