161299088 has 10 divisors (see below), whose sum is σ = 312517014. Its totient is φ = 80649536.

The previous prime is 161299081. The next prime is 161299091. The reversal of 161299088 is 880992161.

It can be written as a sum of positive squares in only one way, i.e., 149132944 + 12166144 = 12212^2 + 3488^2 .

It is not an unprimeable number, because it can be changed into a prime (161299081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5040581 + ... + 5040612.

Almost surely, 2^161299088 is an apocalyptic number.

It is an amenable number.

161299088 is a deficient number, since it is larger than the sum of its proper divisors (151217926).

161299088 is a wasteful number, since it uses less digits than its factorization.

161299088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081201 (or 10081195 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 161299088 is about 12700.3577902357. The cubic root of 161299088 is about 544.3488427199.

The spelling of 161299088 in words is "one hundred sixty-one million, two hundred ninety-nine thousand, eighty-eight".