2136543412 has 6 divisors (see below), whose sum is σ = 3738950978. Its totient is φ = 1068271704.

The previous prime is 2136543397. The next prime is 2136543469. The reversal of 2136543412 is 2143456312.

It can be written as a sum of positive squares in only one way, i.e., 1869351696 + 267191716 = 43236^2 + 16346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267067923 + ... + 267067930.

Almost surely, 2^2136543412 is an apocalyptic number.

It is an amenable number.

2136543412 is a deficient number, since it is larger than the sum of its proper divisors (1602407566).

2136543412 is a wasteful number, since it uses less digits than its factorization.

2136543412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534135857 (or 534135855 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 2136543412 is about 46222.7585935760. The cubic root of 2136543412 is about 1287.9645427336.

Adding to 2136543412 its reverse (2143456312), we get a palindrome (4279999724).

The spelling of 2136543412 in words is "two billion, one hundred thirty-six million, five hundred forty-three thousand, four hundred twelve".