2147047551 has 24 divisors (see below), whose sum is σ = 3397302480. Its totient is φ = 1295827200.

The previous prime is 2147047549. The next prime is 2147047571. The reversal of 2147047551 is 1557407412.

2147047551 is a `hidden beast` number, since 21 + 47 + 0 + 47 + 551 = 666.

It is not a de Polignac number, because 2147047551 - 2¹ = 2147047549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147047501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21136 + ... + 68853.

It is an arithmetic number, because the mean of its divisors is an integer number (141554270).

Almost surely, 2^2147047551 is an apocalyptic number.

2147047551 is a deficient number, since it is larger than the sum of its proper divisors (1250254929).

2147047551 is a wasteful number, since it uses less digits than its factorization.

2147047551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90247 (or 90244 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 2147047551 is about 46336.2444637025. The cubic root of 2147047551 is about 1290.0718168058.

The spelling of 2147047551 in words is "two billion, one hundred forty-seven million, forty-seven thousand, five hundred fifty-one".