2149065538 has 8 divisors (see below), whose sum is σ = 3223821888. Its totient is φ = 1074458244.

The previous prime is 2149065521. The next prime is 2149065599. The reversal of 2149065538 is 8355609412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2149065494 and 2149065503.

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, 11595 + ... + 66577.

It is an arithmetic number, because the mean of its divisors is an integer number (402977736).

Almost surely, 2^2149065538 is an apocalyptic number.

2149065538 is a deficient number, since it is larger than the sum of its proper divisors (1074756350).

2149065538 is a wasteful number, since it uses less digits than its factorization.

2149065538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74528.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2149065538 is about 46358.0148194463. The cubic root of 2149065538 is about 1290.4758651403.

The spelling of 2149065538 in words is "two billion, one hundred forty-nine million, sixty-five thousand, five hundred thirty-eight".