2145134022004 has 24 divisors (see below), whose sum is σ = 3809247512840. Its totient is φ = 1056874162176.

The previous prime is 2145134021999. The next prime is 2145134022023. The reversal of 2145134022004 is 4002204315412.

It can be written as a sum of positive squares in 4 ways, for example, as 657075602404 + 1488058419600 = 810602^2 + 1219860^2 .

It is a congruent number.

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, 11982537 + ... + 12160240.

Almost surely, 2^{2145134022004} is an apocalyptic number.

It is an amenable number.

2145134022004 is a deficient number, since it is larger than the sum of its proper divisors (1664113490836).

2145134022004 is a wasteful number, since it uses less digits than its factorization.

2145134022004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24143107 (or 24143105 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 2145134022004 its reverse (4002204315412), we get a palindrome (6147338337416).

The spelling of 2145134022004 in words is "two trillion, one hundred forty-five billion, one hundred thirty-four million, twenty-two thousand, four".