2291777149 has 8 divisors (see below), whose sum is σ = 2357233472. Its totient is φ = 2226873600.

The previous prime is 2291777129. The next prime is 2291777153. The reversal of 2291777149 is 9417771922.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2291777149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291777119) 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, 129777 + ... + 146374.

It is an arithmetic number, because the mean of its divisors is an integer number (294654184).

Almost surely, 2^2291777149 is an apocalyptic number.

It is an amenable number.

2291777149 is a deficient number, since it is larger than the sum of its proper divisors (65456323).

2291777149 is a wasteful number, since it uses less digits than its factorization.

2291777149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276387.

The product of its digits is 444528, while the sum is 49.

The square root of 2291777149 is about 47872.5093242458. The cubic root of 2291777149 is about 1318.4311689599.

The spelling of 2291777149 in words is "two billion, two hundred ninety-one million, seven hundred seventy-seven thousand, one hundred forty-nine".