161430302 has 16 divisors (see below), whose sum is σ = 267779952. Its totient is φ = 72371520.

The previous prime is 161430301. The next prime is 161430319. The reversal of 161430302 is 203034161.

It is a super-2 number, since 2×161430302² = 52119484807622408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161430301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48653 + ... + 51864.

It is an arithmetic number, because the mean of its divisors is an integer number (16736247).

Almost surely, 2^161430302 is an apocalyptic number.

161430302 is a deficient number, since it is larger than the sum of its proper divisors (106349650).

161430302 is a wasteful number, since it uses less digits than its factorization.

161430302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100603.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 161430302 is about 12705.5225000785. The cubic root of 161430302 is about 544.4964088152.

Adding to 161430302 its reverse (203034161), we get a palindrome (364464463).

The spelling of 161430302 in words is "one hundred sixty-one million, four hundred thirty thousand, three hundred two".