161675093 has 2 divisors, whose sum is σ = 161675094. Its totient is φ = 161675092.

The previous prime is 161675081. The next prime is 161675113. The reversal of 161675093 is 390576161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101566084 + 60109009 = 10078^2 + 7753^2 .

It is a cyclic number.

It is not a de Polignac number, because 161675093 - 2¹⁰ = 161674069 is a prime.

It is a super-2 number, since 2×161675093² = 52277671393117298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161675053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80837546 + 80837547.

It is an arithmetic number, because the mean of its divisors is an integer number (80837547).

Almost surely, 2^161675093 is an apocalyptic number.

It is an amenable number.

161675093 is a deficient number, since it is larger than the sum of its proper divisors (1).

161675093 is an equidigital number, since it uses as much as digits as its factorization.

161675093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 161675093 is about 12715.1521029046. The cubic root of 161675093 is about 544.7714924549.

The spelling of 161675093 in words is "one hundred sixty-one million, six hundred seventy-five thousand, ninety-three".