91143034 has 4 divisors (see below), whose sum is σ = 136714554. Its totient is φ = 45571516.

The previous prime is 91143029. The next prime is 91143061. The reversal of 91143034 is 43034119.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43034119 = 163 ⋅264013.

It can be written as a sum of positive squares in only one way, i.e., 48958009 + 42185025 = 6997^2 + 6495^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22785757 + ... + 22785760.

Almost surely, 2^91143034 is an apocalyptic number.

91143034 is a deficient number, since it is larger than the sum of its proper divisors (45571520).

91143034 is a wasteful number, since it uses less digits than its factorization.

91143034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45571519.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 91143034 is about 9546.8860891916. The cubic root of 91143034 is about 450.0296836386.

The spelling of 91143034 in words is "ninety-one million, one hundred forty-three thousand, thirty-four".