91030465 has 8 divisors (see below), whose sum is σ = 109421928. Its totient is φ = 72700800.

The previous prime is 91030453. The next prime is 91030519. The reversal of 91030465 is 56403019.

It can be written as a sum of positive squares in 4 ways, for example, as 18593344 + 72437121 = 4312^2 + 8511^2 .

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

It is not a de Polignac number, because 91030465 - 2⁷ = 91030337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12142 + ... + 18151.

It is an arithmetic number, because the mean of its divisors is an integer number (13677741).

Almost surely, 2^91030465 is an apocalyptic number.

It is an amenable number.

91030465 is a deficient number, since it is larger than the sum of its proper divisors (18391463).

91030465 is a wasteful number, since it uses less digits than its factorization.

91030465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30899.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 91030465 is about 9540.9886804251. The cubic root of 91030465 is about 449.8443329881.

It can be divided in two parts, 910 and 30465, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 91030465 in words is "ninety-one million, thirty thousand, four hundred sixty-five".