854005147 has 4 divisors (see below), whose sum is σ = 854319456. Its totient is φ = 853690840.

The previous prime is 854005133. The next prime is 854005153. The reversal of 854005147 is 741500458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854005147 is a prime.

It is a super-2 number, since 2×854005147² = 1458649582204983218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854003147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153043 + ... + 158524.

It is an arithmetic number, because the mean of its divisors is an integer number (213579864).

Almost surely, 2^854005147 is an apocalyptic number.

854005147 is a deficient number, since it is larger than the sum of its proper divisors (314309).

854005147 is a wasteful number, since it uses less digits than its factorization.

854005147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314308.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 854005147 is about 29223.3664556293. The cubic root of 854005147 is about 948.7537293972.

The spelling of 854005147 in words is "eight hundred fifty-four million, five thousand, one hundred forty-seven".