7161349853 has 30 divisors (see below), whose sum is σ = 8468056026. Its totient is φ = 6055854336.

The previous prime is 7161349843. The next prime is 7161349879. The reversal of 7161349853 is 3589431617.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 33431524 + 7127918329 = 5782^2 + 84427^2 .

It is not a de Polignac number, because 7161349853 - 2⁴ = 7161349837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7161349798 and 7161349807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161349843) 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 29 ways as a sum of consecutive naturals, for example, 22590851 + ... + 22591167.

Almost surely, 2^7161349853 is an apocalyptic number.

It is an amenable number.

7161349853 is a deficient number, since it is larger than the sum of its proper divisors (1306706173).

7161349853 is an frugal number, since it uses more digits than its factorization.

7161349853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 421 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 7161349853 is about 84624.7591015774. The cubic root of 7161349853 is about 1927.5173545125.

The spelling of 7161349853 in words is "seven billion, one hundred sixty-one million, three hundred forty-nine thousand, eight hundred fifty-three".