161126892 has 18 divisors (see below), whose sum is σ = 407293068. Its totient is φ = 53708952.

The previous prime is 161126881. The next prime is 161126909. The reversal of 161126892 is 298621161.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4475747 = 161126892 / (1 + 6 + 1 + 1 + 2 + 6 + 8 + 9 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2237838 + ... + 2237909.

Almost surely, 2^161126892 is an apocalyptic number.

161126892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161126892 is an abundant number, since it is smaller than the sum of its proper divisors (246166176).

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

161126892 is a wasteful number, since it uses less digits than its factorization.

161126892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4475757 (or 4475752 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 161126892 is about 12693.5768008863. The cubic root of 161126892 is about 544.1550659085.

The spelling of 161126892 in words is "one hundred sixty-one million, one hundred twenty-six thousand, eight hundred ninety-two".