159651497 has 2 divisors, whose sum is σ = 159651498. Its totient is φ = 159651496.

The previous prime is 159651473. The next prime is 159651551. The reversal of 159651497 is 794156951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83978896 + 75672601 = 9164^2 + 8699^2 .

It is a cyclic number.

It is not a de Polignac number, because 159651497 - 2⁸ = 159651241 is a prime.

It is not a weakly prime, because it can be changed into another prime (159651397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79825748 + 79825749.

It is an arithmetic number, because the mean of its divisors is an integer number (79825749).

Almost surely, 2^159651497 is an apocalyptic number.

It is an amenable number.

159651497 is a deficient number, since it is larger than the sum of its proper divisors (1).

159651497 is an equidigital number, since it uses as much as digits as its factorization.

159651497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 159651497 is about 12635.3273404372. The cubic root of 159651497 is about 542.4890773424.

The spelling of 159651497 in words is "one hundred fifty-nine million, six hundred fifty-one thousand, four hundred ninety-seven".