9157442113 has 4 divisors (see below), whose sum is σ = 9165197268. Its totient is φ = 9149686960.

The previous prime is 9157442089. The next prime is 9157442137. The reversal of 9157442113 is 3112447519.

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: 3112447519 = 71 ⋅43837289.

It is an interprime number because it is at equal distance from previous prime (9157442089) and next prime (9157442137).

It can be written as a sum of positive squares in 2 ways, for example, as 5054783409 + 4102658704 = 71097^2 + 64052^2 .

It is a cyclic number.

It is not a de Polignac number, because 9157442113 - 2¹³ = 9157433921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9157442813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3875806 + ... + 3878167.

It is an arithmetic number, because the mean of its divisors is an integer number (2291299317).

Almost surely, 2^9157442113 is an apocalyptic number.

It is an amenable number.

9157442113 is a deficient number, since it is larger than the sum of its proper divisors (7755155).

9157442113 is a wasteful number, since it uses less digits than its factorization.

9157442113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755154.

The product of its digits is 30240, while the sum is 37.

The square root of 9157442113 is about 95694.5249896774. The cubic root of 9157442113 is about 2092.1431365911.

The spelling of 9157442113 in words is "nine billion, one hundred fifty-seven million, four hundred forty-two thousand, one hundred thirteen".