161349127 has 4 divisors (see below), whose sum is σ = 166912920. Its totient is φ = 155785336.

The previous prime is 161349043. The next prime is 161349131. The reversal of 161349127 is 721943161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161349127 - 2¹¹ = 161347079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161349092 and 161349101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161349157) 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, 2781853 + ... + 2781910.

It is an arithmetic number, because the mean of its divisors is an integer number (41728230).

Almost surely, 2^161349127 is an apocalyptic number.

161349127 is a deficient number, since it is larger than the sum of its proper divisors (5563793).

161349127 is an equidigital number, since it uses as much as digits as its factorization.

161349127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563792.

The product of its digits is 9072, while the sum is 34.

The square root of 161349127 is about 12702.3276213456. The cubic root of 161349127 is about 544.4051270958.

The spelling of 161349127 in words is "one hundred sixty-one million, three hundred forty-nine thousand, one hundred twenty-seven".