151681163 has 2 divisors, whose sum is σ = 151681164. Its totient is φ = 151681162.

The previous prime is 151681147. The next prime is 151681169. The reversal of 151681163 is 361186151.

It is a strong prime.

It is an emirp because it is prime and its reverse (361186151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151681163 - 2⁴ = 151681147 is a prime.

It is not a weakly prime, because it can be changed into another prime (151681169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75840581 + 75840582.

It is an arithmetic number, because the mean of its divisors is an integer number (75840582).

Almost surely, 2^151681163 is an apocalyptic number.

151681163 is a deficient number, since it is larger than the sum of its proper divisors (1).

151681163 is an equidigital number, since it uses as much as digits as its factorization.

151681163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 151681163 is about 12315.8906701870. The cubic root of 151681163 is about 533.3069171378.

The spelling of 151681163 in words is "one hundred fifty-one million, six hundred eighty-one thousand, one hundred sixty-three".