2102207455 has 4 divisors (see below), whose sum is σ = 2522648952. Its totient is φ = 1681765960.

The previous prime is 2102207453. The next prime is 2102207467. The reversal of 2102207455 is 5547022012.

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

It is not a de Polignac number, because 2102207455 - 2¹ = 2102207453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102207453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210220741 + ... + 210220750.

It is an arithmetic number, because the mean of its divisors is an integer number (630662238).

Almost surely, 2^2102207455 is an apocalyptic number.

2102207455 is a deficient number, since it is larger than the sum of its proper divisors (420441497).

2102207455 is an equidigital number, since it uses as much as digits as its factorization.

2102207455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420441496.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 2102207455 is about 45849.8359320947. The cubic root of 2102207455 is about 1281.0277095859.

Adding to 2102207455 its reverse (5547022012), we get a palindrome (7649229467).

The spelling of 2102207455 in words is "two billion, one hundred two million, two hundred seven thousand, four hundred fifty-five".