151666271 has 2 divisors, whose sum is σ = 151666272. Its totient is φ = 151666270.

The previous prime is 151666267. The next prime is 151666309. The reversal of 151666271 is 172666151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151666271 - 2² = 151666267 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151666211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75833135 + 75833136.

It is an arithmetic number, because the mean of its divisors is an integer number (75833136).

Almost surely, 2^151666271 is an apocalyptic number.

151666271 is a deficient number, since it is larger than the sum of its proper divisors (1).

151666271 is an equidigital number, since it uses as much as digits as its factorization.

151666271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 151666271 is about 12315.2860705710. The cubic root of 151666271 is about 533.2894632752.

The spelling of 151666271 in words is "one hundred fifty-one million, six hundred sixty-six thousand, two hundred seventy-one".