281394001 has 8 divisors (see below), whose sum is σ = 321719040. Its totient is φ = 241100448.

The previous prime is 281393999. The next prime is 281394007. The reversal of 281394001 is 100493182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 281394001 - 2¹ = 281393999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (281394007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16200 + ... + 28726.

It is an arithmetic number, because the mean of its divisors is an integer number (40214880).

Almost surely, 2^281394001 is an apocalyptic number.

It is an amenable number.

281394001 is a deficient number, since it is larger than the sum of its proper divisors (40325039).

281394001 is a wasteful number, since it uses less digits than its factorization.

281394001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15743.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 281394001 is about 16774.8025621764. The cubic root of 281394001 is about 655.2971485497.

The spelling of 281394001 in words is "two hundred eighty-one million, three hundred ninety-four thousand, one".