551834147 has 4 divisors (see below), whose sum is σ = 575826960. Its totient is φ = 527841336.

The previous prime is 551834123. The next prime is 551834183. The reversal of 551834147 is 741438155.

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

It is a cyclic number.

It is not a de Polignac number, because 551834147 - 2¹⁸ = 551572003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551834147.

It is not an unprimeable number, because it can be changed into a prime (551834117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11996372 + ... + 11996417.

It is an arithmetic number, because the mean of its divisors is an integer number (143956740).

Almost surely, 2^551834147 is an apocalyptic number.

551834147 is a deficient number, since it is larger than the sum of its proper divisors (23992813).

551834147 is a wasteful number, since it uses less digits than its factorization.

551834147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23992812.

The product of its digits is 67200, while the sum is 38.

The square root of 551834147 is about 23491.1503975433. The cubic root of 551834147 is about 820.2310210667.

The spelling of 551834147 in words is "five hundred fifty-one million, eight hundred thirty-four thousand, one hundred forty-seven".