91454145 has 8 divisors (see below), whose sum is σ = 146326656. Its totient is φ = 48775536.

The previous prime is 91454137. The next prime is 91454147. The reversal of 91454145 is 54145419.

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

It is not a de Polignac number, because 91454145 - 2³ = 91454137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91454147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3048457 + ... + 3048486.

It is an arithmetic number, because the mean of its divisors is an integer number (18290832).

Almost surely, 2^91454145 is an apocalyptic number.

It is an amenable number.

91454145 is a deficient number, since it is larger than the sum of its proper divisors (54872511).

91454145 is a wasteful number, since it uses less digits than its factorization.

91454145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096951.

The product of its digits is 14400, while the sum is 33.

The square root of 91454145 is about 9563.1660552351. The cubic root of 91454145 is about 450.5411514419.

It can be divided in two parts, 9145414 and 5, that added together give a palindrome (9145419).

The spelling of 91454145 in words is "ninety-one million, four hundred fifty-four thousand, one hundred forty-five".