181126842 has 32 divisors (see below), whose sum is σ = 390700800. Its totient is φ = 55648320.

The previous prime is 181126787. The next prime is 181126849. The reversal of 181126842 is 248621181.

It is not an unprimeable number, because it can be changed into a prime (181126849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69784 + ... + 72332.

It is an arithmetic number, because the mean of its divisors is an integer number (12209400).

Almost surely, 2^181126842 is an apocalyptic number.

181126842 is an abundant number, since it is smaller than the sum of its proper divisors (209573958).

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

181126842 is a wasteful number, since it uses less digits than its factorization.

181126842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478.

The product of its digits is 6144, while the sum is 33.

The square root of 181126842 is about 13458.3372672853. The cubic root of 181126842 is about 565.7973882210.

The spelling of 181126842 in words is "one hundred eighty-one million, one hundred twenty-six thousand, eight hundred forty-two".