161349107 has 4 divisors (see below), whose sum is σ = 162168336. Its totient is φ = 160529880.

The previous prime is 161349043. The next prime is 161349131. The reversal of 161349107 is 701943161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161349107 - 2⁶ = 161349043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161349157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409319 + ... + 409712.

It is an arithmetic number, because the mean of its divisors is an integer number (40542084).

Almost surely, 2^161349107 is an apocalyptic number.

161349107 is a deficient number, since it is larger than the sum of its proper divisors (819229).

161349107 is an equidigital number, since it uses as much as digits as its factorization.

161349107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819228.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 161349107 is about 12702.3268340883. The cubic root of 161349107 is about 544.4051046019.

The spelling of 161349107 in words is "one hundred sixty-one million, three hundred forty-nine thousand, one hundred seven".