911319149 has 12 divisors (see below), whose sum is σ = 997917300. Its totient is φ = 831752064.

The previous prime is 911319137. The next prime is 911319161. The reversal of 911319149 is 941913119.

It is an interprime number because it is at equal distance from previous prime (911319137) and next prime (911319161).

It can be written as a sum of positive squares in 6 ways, for example, as 105781225 + 805537924 = 10285^2 + 28382^2 .

It is a de Polignac number, because none of the positive numbers 2^k-911319149 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 (911319449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15254 + ... + 45335.

It is an arithmetic number, because the mean of its divisors is an integer number (83159775).

Almost surely, 2^911319149 is an apocalyptic number.

It is an amenable number.

911319149 is a deficient number, since it is larger than the sum of its proper divisors (86598151).

911319149 is a wasteful number, since it uses less digits than its factorization.

911319149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60704 (or 60691 counting only the distinct ones).

The product of its digits is 8748, while the sum is 38.

The square root of 911319149 is about 30188.0630216647. The cubic root of 911319149 is about 969.5201328578.

The spelling of 911319149 in words is "nine hundred eleven million, three hundred nineteen thousand, one hundred forty-nine".