91144119 has 8 divisors (see below), whose sum is σ = 132573312. Its totient is φ = 55238840.

The previous prime is 91144111. The next prime is 91144169.

91144119 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 91144119 - 2³ = 91144111 is a prime.

It is a super-2 number, since 2×91144119² = 16614500856572322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91144111) 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, 1380939 + ... + 1381004.

It is an arithmetic number, because the mean of its divisors is an integer number (16571664).

Almost surely, 2^91144119 is an apocalyptic number.

91144119 is a deficient number, since it is larger than the sum of its proper divisors (41429193).

91144119 is a wasteful number, since it uses less digits than its factorization.

91144119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2761957.

The product of its digits is 1296, while the sum is 30.

The square root of 91144119 is about 9546.9429138337. The cubic root of 91144119 is about 450.0314694042.

The spelling of 91144119 in words is "ninety-one million, one hundred forty-four thousand, one hundred nineteen".