161267099 has 8 divisors (see below), whose sum is σ = 192318720. Its totient is φ = 132218856.

The previous prime is 161267069. The next prime is 161267107. The reversal of 161267099 is 990762161.

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

It is a de Polignac number, because none of the positive numbers 2^k-161267099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161267069) 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, 500669 + ... + 500990.

It is an arithmetic number, because the mean of its divisors is an integer number (24039840).

Almost surely, 2^161267099 is an apocalyptic number.

161267099 is a deficient number, since it is larger than the sum of its proper divisors (31051621).

161267099 is a wasteful number, since it uses less digits than its factorization.

161267099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001689.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 161267099 is about 12699.0983538202. The cubic root of 161267099 is about 544.3128550678.

The spelling of 161267099 in words is "one hundred sixty-one million, two hundred sixty-seven thousand, ninety-nine".