161126430 has 16 divisors (see below), whose sum is σ = 386703504. Its totient is φ = 42967040.

The previous prime is 161126423. The next prime is 161126503. The reversal of 161126430 is 34621161.

It is a self number, because there is not a number n which added to its sum of digits gives 161126430.

It is a congruent number.

It is an unprimeable number.

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, 2685411 + ... + 2685470.

It is an arithmetic number, because the mean of its divisors is an integer number (24168969).

Almost surely, 2^161126430 is an apocalyptic number.

161126430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161126430 is an abundant number, since it is smaller than the sum of its proper divisors (225577074).

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

161126430 is a wasteful number, since it uses less digits than its factorization.

161126430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370891.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 161126430 is about 12693.5586026929. The cubic root of 161126430 is about 544.1545458218.

Adding to 161126430 its reverse (34621161), we get a palindrome (195747591).

The spelling of 161126430 in words is "one hundred sixty-one million, one hundred twenty-six thousand, four hundred thirty".