91462081 has 4 divisors (see below), whose sum is σ = 91724500. Its totient is φ = 91199664.

The previous prime is 91462073. The next prime is 91462109. The reversal of 91462081 is 18026419.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18026419 = 683 ⋅26393.

It can be written as a sum of positive squares in 2 ways, for example, as 43020481 + 48441600 = 6559^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 91462081 - 2³ = 91462073 is a prime.

It is a super-2 number, since 2×91462081² = 16730624521701122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91462061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130686 + ... + 131383.

It is an arithmetic number, because the mean of its divisors is an integer number (22931125).

Almost surely, 2^91462081 is an apocalyptic number.

It is an amenable number.

91462081 is a deficient number, since it is larger than the sum of its proper divisors (262419).

91462081 is a wasteful number, since it uses less digits than its factorization.

91462081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262418.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 91462081 is about 9563.5809715817. The cubic root of 91462081 is about 450.5541830771.

The spelling of 91462081 in words is "ninety-one million, four hundred sixty-two thousand, eighty-one".