91461229 has 4 divisors (see below), whose sum is σ = 91480480. Its totient is φ = 91441980.

The previous prime is 91461197. The next prime is 91461239. The reversal of 91461229 is 92216419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91461229 - 2⁵ = 91461197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91461194 and 91461203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91461239) 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, 3184 + ... + 13894.

It is an arithmetic number, because the mean of its divisors is an integer number (22870120).

Almost surely, 2^91461229 is an apocalyptic number.

It is an amenable number.

91461229 is a deficient number, since it is larger than the sum of its proper divisors (19251).

91461229 is a wasteful number, since it uses less digits than its factorization.

91461229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250.

The product of its digits is 7776, while the sum is 34.

The square root of 91461229 is about 9563.5364274938. The cubic root of 91461229 is about 450.5527840515.

The spelling of 91461229 in words is "ninety-one million, four hundred sixty-one thousand, two hundred twenty-nine".