151271457809 has 2 divisors, whose sum is σ = 151271457810. Its totient is φ = 151271457808.

The previous prime is 151271457803. The next prime is 151271457817. The reversal of 151271457809 is 908754172151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78548470225 + 72722987584 = 280265^2 + 269672^2 .

It is a cyclic number.

It is not a de Polignac number, because 151271457809 - 2⁴ = 151271457793 is a prime.

It is not a weakly prime, because it can be changed into another prime (151271457803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75635728904 + 75635728905.

It is an arithmetic number, because the mean of its divisors is an integer number (75635728905).

Almost surely, 2^151271457809 is an apocalyptic number.

It is an amenable number.

151271457809 is a deficient number, since it is larger than the sum of its proper divisors (1).

151271457809 is an equidigital number, since it uses as much as digits as its factorization.

151271457809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 50.

The spelling of 151271457809 in words is "one hundred fifty-one billion, two hundred seventy-one million, four hundred fifty-seven thousand, eight hundred nine".