161132949 has 8 divisors (see below), whose sum is σ = 238715520. Its totient is φ = 107421948.

The previous prime is 161132929. The next prime is 161132957. The reversal of 161132949 is 949231161.

It is a happy number.

161132949 is a `hidden beast` number, since 1 + 611 + 32 + 9 + 4 + 9 = 666.

161132949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161132949 - 2⁷ = 161132821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161132929) 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, 2983917 + ... + 2983970.

It is an arithmetic number, because the mean of its divisors is an integer number (29839440).

Almost surely, 2^161132949 is an apocalyptic number.

It is an amenable number.

161132949 is a deficient number, since it is larger than the sum of its proper divisors (77582571).

161132949 is an equidigital number, since it uses as much as digits as its factorization.

161132949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967896 (or 5967890 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 161132949 is about 12693.8153838789. The cubic root of 161132949 is about 544.1618843564.

The spelling of 161132949 in words is "one hundred sixty-one million, one hundred thirty-two thousand, nine hundred forty-nine".