161675937 has 6 divisors (see below), whose sum is σ = 233531922. Its totient is φ = 107783952.

The previous prime is 161675929. The next prime is 161675963. The reversal of 161675937 is 739576161.

161675937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 121682961 + 39992976 = 11031^2 + 6324^2 .

It is not a de Polignac number, because 161675937 - 2³ = 161675929 is a prime.

It is a super-2 number, since 2×161675937² = 52278217209655938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161675892 and 161675901.

It is not an unprimeable number, because it can be changed into a prime (161675537) 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, 8981988 + ... + 8982005.

It is an arithmetic number, because the mean of its divisors is an integer number (38921987).

Almost surely, 2^161675937 is an apocalyptic number.

It is an amenable number.

161675937 is a deficient number, since it is larger than the sum of its proper divisors (71855985).

161675937 is a wasteful number, since it uses less digits than its factorization.

161675937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963999 (or 17963996 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 161675937 is about 12715.1852916110. The cubic root of 161675937 is about 544.7724404186.

The spelling of 161675937 in words is "one hundred sixty-one million, six hundred seventy-five thousand, nine hundred thirty-seven".