91494351 has 12 divisors (see below), whose sum is σ = 142324728. Its totient is φ = 56304144.

The previous prime is 91494349. The next prime is 91494379. The reversal of 91494351 is 15349419.

It is a happy number.

It is not a de Polignac number, because 91494351 - 2¹ = 91494349 is a prime.

It is a super-2 number, since 2×91494351² = 16742432529822402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91494301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 390885 + ... + 391118.

It is an arithmetic number, because the mean of its divisors is an integer number (11860394).

Almost surely, 2^91494351 is an apocalyptic number.

91494351 is a deficient number, since it is larger than the sum of its proper divisors (50830377).

91494351 is a wasteful number, since it uses less digits than its factorization.

91494351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782022 (or 782019 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 91494351 is about 9565.2679523367. The cubic root of 91494351 is about 450.6071655944.

The spelling of 91494351 in words is "ninety-one million, four hundred ninety-four thousand, three hundred fifty-one".