151521163 has 2 divisors, whose sum is σ = 151521164. Its totient is φ = 151521162.

The previous prime is 151521151. The next prime is 151521169. The reversal of 151521163 is 361125151.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (361125151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151521163 - 2⁹ = 151520651 is a prime.

It is not a weakly prime, because it can be changed into another prime (151521169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75760581 + 75760582.

It is an arithmetic number, because the mean of its divisors is an integer number (75760582).

Almost surely, 2^151521163 is an apocalyptic number.

151521163 is a deficient number, since it is larger than the sum of its proper divisors (1).

151521163 is an equidigital number, since it uses as much as digits as its factorization.

151521163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 25.

The square root of 151521163 is about 12309.3932831801. The cubic root of 151521163 is about 533.1193325896.

The spelling of 151521163 in words is "one hundred fifty-one million, five hundred twenty-one thousand, one hundred sixty-three".