91158014 has 8 divisors (see below), whose sum is σ = 137125440. Its totient is φ = 45449536.

The previous prime is 91157977. The next prime is 91158017. The reversal of 91158014 is 41085119.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91158017) 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, 63854 + ... + 65265.

It is an arithmetic number, because the mean of its divisors is an integer number (17140680).

Almost surely, 2^91158014 is an apocalyptic number.

91158014 is a deficient number, since it is larger than the sum of its proper divisors (45967426).

91158014 is a wasteful number, since it uses less digits than its factorization.

91158014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129474.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 91158014 is about 9547.6706059646. The cubic root of 91158014 is about 450.0543374714.

The spelling of 91158014 in words is "ninety-one million, one hundred fifty-eight thousand, fourteen".