97159261 has 2 divisors, whose sum is σ = 97159262. Its totient is φ = 97159260.

The previous prime is 97159243. The next prime is 97159297. The reversal of 97159261 is 16295179.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49632025 + 47527236 = 7045^2 + 6894^2 .

It is a cyclic number.

It is not a de Polignac number, because 97159261 - 2⁹ = 97158749 is a prime.

It is a super-2 number, since 2×97159261² = 18879843996132242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97159211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48579630 + 48579631.

It is an arithmetic number, because the mean of its divisors is an integer number (48579631).

Almost surely, 2^97159261 is an apocalyptic number.

It is an amenable number.

97159261 is a deficient number, since it is larger than the sum of its proper divisors (1).

97159261 is an equidigital number, since it uses as much as digits as its factorization.

97159261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 40.

The square root of 97159261 is about 9856.9397380729. The cubic root of 97159261 is about 459.7214144927.

The spelling of 97159261 in words is "ninety-seven million, one hundred fifty-nine thousand, two hundred sixty-one".