161150947 has 8 divisors (see below), whose sum is σ = 166371296. Its totient is φ = 155976192.

The previous prime is 161150933. The next prime is 161150981. The reversal of 161150947 is 749051161.

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 161150947 - 2¹⁵ = 161118179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161150987) 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, 4143 + ... + 18424.

It is an arithmetic number, because the mean of its divisors is an integer number (20796412).

Almost surely, 2^161150947 is an apocalyptic number.

161150947 is a deficient number, since it is larger than the sum of its proper divisors (5220349).

161150947 is a wasteful number, since it uses less digits than its factorization.

161150947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22797.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 161150947 is about 12694.5242919930. The cubic root of 161150947 is about 544.1821439433.

The spelling of 161150947 in words is "one hundred sixty-one million, one hundred fifty thousand, nine hundred forty-seven".