2123207547 has 8 divisors (see below), whose sum is σ = 2834369856. Its totient is φ = 1413758472.

The previous prime is 2123207483. The next prime is 2123207549. The reversal of 2123207547 is 7457023212.

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

It is not a de Polignac number, because 2123207547 - 2⁶ = 2123207483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123207549) 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, 425413 + ... + 430374.

It is an arithmetic number, because the mean of its divisors is an integer number (354296232).

Almost surely, 2^2123207547 is an apocalyptic number.

2123207547 is a deficient number, since it is larger than the sum of its proper divisors (711162309).

2123207547 is an equidigital number, since it uses as much as digits as its factorization.

2123207547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856617.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 2123207547 is about 46078.2763023966. The cubic root of 2123207547 is about 1285.2792111809.

The spelling of 2123207547 in words is "two billion, one hundred twenty-three million, two hundred seven thousand, five hundred forty-seven".