161675101 has 4 divisors (see below), whose sum is σ = 184771552. Its totient is φ = 138578652.

The previous prime is 161675093. The next prime is 161675113. The reversal of 161675101 is 101576161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101576161 = 281 ⋅361481.

It is a cyclic number.

It is not a de Polignac number, because 161675101 - 2³ = 161675093 is a prime.

It is a super-2 number, since 2×161675101² = 52277676566720402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161675101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161675401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11548215 + ... + 11548228.

It is an arithmetic number, because the mean of its divisors is an integer number (46192888).

Almost surely, 2^161675101 is an apocalyptic number.

It is an amenable number.

161675101 is a deficient number, since it is larger than the sum of its proper divisors (23096451).

161675101 is an equidigital number, since it uses as much as digits as its factorization.

161675101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23096450.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 161675101 is about 12715.1524174899. The cubic root of 161675101 is about 544.7715014404.

The spelling of 161675101 in words is "one hundred sixty-one million, six hundred seventy-five thousand, one hundred one".