91562461 has 2 divisors, whose sum is σ = 91562462. Its totient is φ = 91562460.

The previous prime is 91562441. The next prime is 91562467. The reversal of 91562461 is 16426519.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90839961 + 722500 = 9531^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 91562461 - 2¹⁹ = 91038173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91562467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45781230 + 45781231.

It is an arithmetic number, because the mean of its divisors is an integer number (45781231).

Almost surely, 2^91562461 is an apocalyptic number.

It is an amenable number.

91562461 is a deficient number, since it is larger than the sum of its proper divisors (1).

91562461 is an equidigital number, since it uses as much as digits as its factorization.

91562461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 91562461 is about 9568.8275666353. The cubic root of 91562461 is about 450.7189511537.

The spelling of 91562461 in words is "ninety-one million, five hundred sixty-two thousand, four hundred sixty-one".