161336354 has 8 divisors (see below), whose sum is σ = 248545308. Its totient is φ = 78487920.

The previous prime is 161336339. The next prime is 161336359. The reversal of 161336354 is 453633161.

It can be written as a sum of positive squares in 2 ways, for example, as 120670225 + 40666129 = 10985^2 + 6377^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 161336354.

It is not an unprimeable number, because it can be changed into a prime (161336359) 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 in 3 ways as a sum of consecutive naturals, for example, 1090037 + ... + 1090184.

Almost surely, 2^161336354 is an apocalyptic number.

161336354 is a deficient number, since it is larger than the sum of its proper divisors (87208954).

161336354 is a wasteful number, since it uses less digits than its factorization.

161336354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180260.

The product of its digits is 19440, while the sum is 32.

The square root of 161336354 is about 12701.8248295274. The cubic root of 161336354 is about 544.3907610018.

The spelling of 161336354 in words is "one hundred sixty-one million, three hundred thirty-six thousand, three hundred fifty-four".