281052051 has 8 divisors (see below), whose sum is σ = 428269824. Its totient is φ = 160601160.

The previous prime is 281052011. The next prime is 281052061. The reversal of 281052051 is 150250182.

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

It is not a de Polignac number, because 281052051 - 2⁷ = 281051923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (281052001) 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, 6691695 + ... + 6691736.

It is an arithmetic number, because the mean of its divisors is an integer number (53533728).

Almost surely, 2^281052051 is an apocalyptic number.

281052051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

281052051 is a deficient number, since it is larger than the sum of its proper divisors (147217773).

281052051 is a wasteful number, since it uses less digits than its factorization.

281052051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13383441.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 281052051 is about 16764.6070935170. The cubic root of 281052051 is about 655.0316019172.

The spelling of 281052051 in words is "two hundred eighty-one million, fifty-two thousand, fifty-one".