2147122555 has 8 divisors (see below), whose sum is σ = 2576855232. Its totient is φ = 1717492608.

The previous prime is 2147122517. The next prime is 2147122567. The reversal of 2147122555 is 5552217412.

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 2147122555 - 2²¹ = 2145025403 is a prime.

It is a super-2 number, since 2×2147122555² = 9220270532379456050, which contains 22 as substring.

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 2147122555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32142 + ... + 72988.

It is an arithmetic number, because the mean of its divisors is an integer number (322106904).

Almost surely, 2^2147122555 is an apocalyptic number.

2147122555 is a deficient number, since it is larger than the sum of its proper divisors (429732677).

2147122555 is a wasteful number, since it uses less digits than its factorization.

2147122555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51365.

The product of its digits is 28000, while the sum is 34.

The square root of 2147122555 is about 46337.0538014665. The cubic root of 2147122555 is about 1290.0868388950.

Adding to 2147122555 its reverse (5552217412), we get a palindrome (7699339967).

The spelling of 2147122555 in words is "two billion, one hundred forty-seven million, one hundred twenty-two thousand, five hundred fifty-five".