91522541 has 8 divisors (see below), whose sum is σ = 100285344. Its totient is φ = 82833520.

The previous prime is 91522531. The next prime is 91522549. The reversal of 91522541 is 14522519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91522541 - 2⁶ = 91522477 is a prime.

It is a super-2 number, since 2×91522541² = 16752751022193362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91522549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15830 + ... + 20823.

It is an arithmetic number, because the mean of its divisors is an integer number (12535668).

Almost surely, 2^91522541 is an apocalyptic number.

It is an amenable number.

91522541 is a deficient number, since it is larger than the sum of its proper divisors (8762803).

91522541 is a wasteful number, since it uses less digits than its factorization.

91522541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36891.

The product of its digits is 3600, while the sum is 29.

The square root of 91522541 is about 9566.7413992435. The cubic root of 91522541 is about 450.6534391675.

It can be divided in two parts, 9152 and 2541, that multiplied together give a palindrome (23255232).

The spelling of 91522541 in words is "ninety-one million, five hundred twenty-two thousand, five hundred forty-one".