161434704 has 40 divisors (see below), whose sum is σ = 419820352. Its totient is φ = 53452800.

The previous prime is 161434699. The next prime is 161434709. The reversal of 161434704 is 407434161.

It is an interprime number because it is at equal distance from previous prime (161434699) and next prime (161434709).

It is a super-2 number, since 2×161434704² = 52122327311135232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161434709) 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 7 ways as a sum of consecutive naturals, for example, 3889 + ... + 18384.

Almost surely, 2^161434704 is an apocalyptic number.

It is an amenable number.

161434704 is an abundant number, since it is smaller than the sum of its proper divisors (258385648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161434704 is a wasteful number, since it uses less digits than its factorization.

161434704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22435 (or 22429 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 161434704 is about 12705.6957306556. The cubic root of 161434704 is about 544.5013580129.

Adding to 161434704 its reverse (407434161), we get a palindrome (568868865).

The spelling of 161434704 in words is "one hundred sixty-one million, four hundred thirty-four thousand, seven hundred four".