161286575 has 6 divisors (see below), whose sum is σ = 199995384. Its totient is φ = 129029240.

The previous prime is 161286569. The next prime is 161286607. The reversal of 161286575 is 575682161.

It is not a de Polignac number, because 161286575 - 2¹⁴ = 161270191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3225707 + ... + 3225756.

It is an arithmetic number, because the mean of its divisors is an integer number (33332564).

Almost surely, 2^161286575 is an apocalyptic number.

161286575 is a deficient number, since it is larger than the sum of its proper divisors (38708809).

161286575 is an equidigital number, since it uses as much as digits as its factorization.

161286575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451473 (or 6451468 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 161286575 is about 12699.8651567645. The cubic root of 161286575 is about 544.3347661509.

The spelling of 161286575 in words is "one hundred sixty-one million, two hundred eighty-six thousand, five hundred seventy-five".