7161849 has 6 divisors (see below), whose sum is σ = 10344906. Its totient is φ = 4774560.

The previous prime is 7161823. The next prime is 7161851. The reversal of 7161849 is 9481617.

It can be written as a sum of positive squares in only one way, i.e., 6985449 + 176400 = 2643^2 + 420^2 .

It is not a de Polignac number, because 7161849 - 2⁹ = 7161337 is a prime.

7161849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7161859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 397872 + ... + 397889.

It is an arithmetic number, because the mean of its divisors is an integer number (1724151).

Almost surely, 2^7161849 is an apocalyptic number.

It is an amenable number.

7161849 is a deficient number, since it is larger than the sum of its proper divisors (3183057).

7161849 is a wasteful number, since it uses less digits than its factorization.

7161849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795767 (or 795764 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 7161849 is about 2676.1631116208. The cubic root of 7161849 is about 192.7562136207.

The spelling of 7161849 in words is "seven million, one hundred sixty-one thousand, eight hundred forty-nine".