161003207 has 8 divisors (see below), whose sum is σ = 170061360. Its totient is φ = 152003520.

The previous prime is 161003201. The next prime is 161003231. The reversal of 161003207 is 702300161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161003207 - 2⁸ = 161002951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161003201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8894 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (21257670).

Almost surely, 2^161003207 is an apocalyptic number.

161003207 is a deficient number, since it is larger than the sum of its proper divisors (9058153).

161003207 is a wasteful number, since it uses less digits than its factorization.

161003207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29233.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 161003207 is about 12688.7039133239. The cubic root of 161003207 is about 544.0157946232.

Adding to 161003207 its reverse (702300161), we get a palindrome (863303368).

The spelling of 161003207 in words is "one hundred sixty-one million, three thousand, two hundred seven".