2801430181 has 4 divisors (see below), whose sum is σ = 3056105664. Its totient is φ = 2546754700.

The previous prime is 2801430179. The next prime is 2801430209. The reversal of 2801430181 is 1810341082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2801430181 - 2¹ = 2801430179 is a prime.

It is a super-2 number, since 2×2801430181² = 15696022118035385522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801430481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127337725 + ... + 127337746.

It is an arithmetic number, because the mean of its divisors is an integer number (764026416).

Almost surely, 2^2801430181 is an apocalyptic number.

It is an amenable number.

2801430181 is a deficient number, since it is larger than the sum of its proper divisors (254675483).

2801430181 is a wasteful number, since it uses less digits than its factorization.

2801430181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254675482.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 2801430181 is about 52928.5384362727. The cubic root of 2801430181 is about 1409.6996796797.

The spelling of 2801430181 in words is "two billion, eight hundred one million, four hundred thirty thousand, one hundred eighty-one".