1349021564 has 36 divisors (see below), whose sum is σ = 2594682888. Its totient is φ = 608635200.

The previous prime is 1349021563. The next prime is 1349021567. The reversal of 1349021564 is 4651209431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349021563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976154 + ... + 977534.

Almost surely, 2^1349021564 is an apocalyptic number.

It is an amenable number.

1349021564 is a deficient number, since it is larger than the sum of its proper divisors (1245661324).

1349021564 is a wasteful number, since it uses less digits than its factorization.

1349021564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1349021564 is about 36729.0289008572. The cubic root of 1349021564 is about 1104.9423784644.

The spelling of 1349021564 in words is "one billion, three hundred forty-nine million, twenty-one thousand, five hundred sixty-four".