161434750 has 16 divisors (see below), whose sum is σ = 302206320. Its totient is φ = 64573800.

The previous prime is 161434747. The next prime is 161434783. The reversal of 161434750 is 57434161.

It is a super-2 number, since 2×161434750² = 52122357015125000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 322620 + ... + 323119.

It is an arithmetic number, because the mean of its divisors is an integer number (18887895).

Almost surely, 2^161434750 is an apocalyptic number.

161434750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161434750 is a deficient number, since it is larger than the sum of its proper divisors (140771570).

161434750 is an equidigital number, since it uses as much as digits as its factorization.

161434750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645756 (or 645746 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 161434750 is about 12705.6975408672. The cubic root of 161434750 is about 544.5014097305.

The spelling of 161434750 in words is "one hundred sixty-one million, four hundred thirty-four thousand, seven hundred fifty".