161349355 has 8 divisors (see below), whose sum is σ = 197739072. Its totient is φ = 126332928.

The previous prime is 161349323. The next prime is 161349361. The reversal of 161349355 is 553943161.

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 161349355 - 2⁵ = 161349323 is a prime.

It is a super-2 number, since 2×161349355² = 52067228717832050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343062 + ... + 343531.

It is an arithmetic number, because the mean of its divisors is an integer number (24717384).

Almost surely, 2^161349355 is an apocalyptic number.

161349355 is a deficient number, since it is larger than the sum of its proper divisors (36389717).

161349355 is an equidigital number, since it uses as much as digits as its factorization.

161349355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686645.

The product of its digits is 48600, while the sum is 37.

The square root of 161349355 is about 12702.3365960755. The cubic root of 161349355 is about 544.4053835259.

The spelling of 161349355 in words is "one hundred sixty-one million, three hundred forty-nine thousand, three hundred fifty-five".