161248207 has 8 divisors (see below), whose sum is σ = 169957440. Its totient is φ = 152748960.

The previous prime is 161248189. The next prime is 161248223. The reversal of 161248207 is 702842161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161248207 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 (161248007) 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 7 ways as a sum of consecutive naturals, for example, 50919 + ... + 53992.

It is an arithmetic number, because the mean of its divisors is an integer number (21244680).

Almost surely, 2^161248207 is an apocalyptic number.

161248207 is a deficient number, since it is larger than the sum of its proper divisors (8709233).

161248207 is a wasteful number, since it uses less digits than its factorization.

161248207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104993.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 161248207 is about 12698.3544996980. The cubic root of 161248207 is about 544.2915993165.

The spelling of 161248207 in words is "one hundred sixty-one million, two hundred forty-eight thousand, two hundred seven".