7161957 has 24 divisors (see below), whose sum is σ = 11451648. Its totient is φ = 4276800.

The previous prime is 7161937. The next prime is 7161971. The reversal of 7161957 is 7591617.

It is not a de Polignac number, because 7161957 - 2¹⁶ = 7096421 is a prime.

7161957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7161937) 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 23 ways as a sum of consecutive naturals, for example, 6732 + ... + 7722.

It is an arithmetic number, because the mean of its divisors is an integer number (477152).

Almost surely, 2^7161957 is an apocalyptic number.

It is an amenable number.

7161957 is a deficient number, since it is larger than the sum of its proper divisors (4289691).

7161957 is a wasteful number, since it uses less digits than its factorization.

7161957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1078 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 7161957 is about 2676.1832896870. The cubic root of 7161957 is about 192.7571825310.

It can be divided in two parts, 7161 and 957, that added together give a palindrome (8118).

The spelling of 7161957 in words is "seven million, one hundred sixty-one thousand, nine hundred fifty-seven".