8161357 has 4 divisors (see below), whose sum is σ = 8351200. Its totient is φ = 7971516.

The previous prime is 8161333. The next prime is 8161381. The reversal of 8161357 is 7531618.

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.

It is an interprime number because it is at equal distance from previous prime (8161333) and next prime (8161381).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8161357 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 (8161957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94857 + ... + 94942.

It is an arithmetic number, because the mean of its divisors is an integer number (2087800).

Almost surely, 2^8161357 is an apocalyptic number.

It is an amenable number.

8161357 is a deficient number, since it is larger than the sum of its proper divisors (189843).

8161357 is a wasteful number, since it uses less digits than its factorization.

8161357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189842.

The product of its digits is 5040, while the sum is 31.

The square root of 8161357 is about 2856.8088840523. The cubic root of 8161357 is about 201.3357013181.

The spelling of 8161357 in words is "eight million, one hundred sixty-one thousand, three hundred fifty-seven".