2149129412 has 12 divisors (see below), whose sum is σ = 3788429820. Its totient is φ = 1066720896.

The previous prime is 2149129399. The next prime is 2149129421. The reversal of 2149129412 is 2149219412.

It can be written as a sum of positive squares in 2 ways, for example, as 1871773696 + 277355716 = 43264^2 + 16654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1960337 + ... + 1961432.

It is an arithmetic number, because the mean of its divisors is an integer number (315702485).

Almost surely, 2^2149129412 is an apocalyptic number.

It is an amenable number.

2149129412 is a deficient number, since it is larger than the sum of its proper divisors (1639300408).

2149129412 is a wasteful number, since it uses less digits than its factorization.

2149129412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921910 (or 3921908 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 2149129412 is about 46358.7037351132. The cubic root of 2149129412 is about 1290.4886500829.

Subtracting 2149129412 from its reverse (2149219412), we obtain a square (90000 = 300²).

The spelling of 2149129412 in words is "two billion, one hundred forty-nine million, one hundred twenty-nine thousand, four hundred twelve".