2145422104 has 16 divisors (see below), whose sum is σ = 4597333200. Its totient is φ = 919466592.

The previous prime is 2145422101. The next prime is 2145422131. The reversal of 2145422104 is 4012245412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145422101) 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, 19155499 + ... + 19155610.

It is an arithmetic number, because the mean of its divisors is an integer number (287333325).

Almost surely, 2^2145422104 is an apocalyptic number.

It is an amenable number.

2145422104 is an abundant number, since it is smaller than the sum of its proper divisors (2451911096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145422104 is a wasteful number, since it uses less digits than its factorization.

2145422104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38311122 (or 38311118 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2145422104 is about 46318.7014498464. The cubic root of 2145422104 is about 1289.7461800559.

Adding to 2145422104 its reverse (4012245412), we get a palindrome (6157667516).

The spelling of 2145422104 in words is "two billion, one hundred forty-five million, four hundred twenty-two thousand, one hundred four".