9531407161 has 4 divisors (see below), whose sum is σ = 9945816192. Its totient is φ = 9116998132.

The previous prime is 9531407143. The next prime is 9531407167. The reversal of 9531407161 is 1617041359.

It is a happy number.

9531407161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1617041359 = 43 ⋅37605613.

It is a cyclic number.

It is not a de Polignac number, because 9531407161 - 2²¹ = 9529310009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9531407161.

It is not an unprimeable number, because it can be changed into a prime (9531407167) 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, 207204481 + ... + 207204526.

It is an arithmetic number, because the mean of its divisors is an integer number (2486454048).

Almost surely, 2^9531407161 is an apocalyptic number.

It is an amenable number.

9531407161 is a deficient number, since it is larger than the sum of its proper divisors (414409031).

9531407161 is a wasteful number, since it uses less digits than its factorization.

9531407161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414409030.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 9531407161 is about 97628.9258416787. The cubic root of 9531407161 is about 2120.2431755734.

The spelling of 9531407161 in words is "nine billion, five hundred thirty-one million, four hundred seven thousand, one hundred sixty-one".