161192147 has 8 divisors (see below), whose sum is σ = 170788176. Its totient is φ = 151608832.

The previous prime is 161192137. The next prime is 161192149. The reversal of 161192147 is 741291161.

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 161192147 - 2¹⁰ = 161191123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161192149) 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, 39128 + ... + 43050.

It is an arithmetic number, because the mean of its divisors is an integer number (21348522).

Almost surely, 2^161192147 is an apocalyptic number.

161192147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161192147 is a deficient number, since it is larger than the sum of its proper divisors (9596029).

161192147 is a wasteful number, since it uses less digits than its factorization.

161192147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357.

The product of its digits is 3024, while the sum is 32.

The square root of 161192147 is about 12696.1469351926. The cubic root of 161192147 is about 544.2285153617.

The spelling of 161192147 in words is "one hundred sixty-one million, one hundred ninety-two thousand, one hundred forty-seven".