9157442111 has 4 divisors (see below), whose sum is σ = 9555591792. Its totient is φ = 8759292432.

The previous prime is 9157442089. The next prime is 9157442137. The reversal of 9157442111 is 1112447519.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1112447519 = 20431 ⋅54449.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9157442111 is a prime.

It is a super-2 number, since 2×9157442111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9157442171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199074806 + ... + 199074851.

It is an arithmetic number, because the mean of its divisors is an integer number (2388897948).

Almost surely, 2^9157442111 is an apocalyptic number.

9157442111 is a deficient number, since it is larger than the sum of its proper divisors (398149681).

9157442111 is a wasteful number, since it uses less digits than its factorization.

9157442111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398149680.

The product of its digits is 10080, while the sum is 35.

The square root of 9157442111 is about 95694.5249792275. The cubic root of 9157442111 is about 2092.1431364388.

The spelling of 9157442111 in words is "nine billion, one hundred fifty-seven million, four hundred forty-two thousand, one hundred eleven".