91115614 has 8 divisors (see below), whose sum is σ = 144713088. Its totient is φ = 42877920.

The previous prime is 91115611. The next prime is 91115617. The reversal of 91115614 is 41651119.

It is an interprime number because it is at equal distance from previous prime (91115611) and next prime (91115617).

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

It is a super-2 number, since 2×91115614² = 16604110229193992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91115611) 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, 1339902 + ... + 1339969.

It is an arithmetic number, because the mean of its divisors is an integer number (18089136).

Almost surely, 2^91115614 is an apocalyptic number.

91115614 is a deficient number, since it is larger than the sum of its proper divisors (53597474).

91115614 is a wasteful number, since it uses less digits than its factorization.

91115614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679890.

The product of its digits is 1080, while the sum is 28.

The square root of 91115614 is about 9545.4499108214. The cubic root of 91115614 is about 449.9845492637.

The spelling of 91115614 in words is "ninety-one million, one hundred fifteen thousand, six hundred fourteen".