1534913393 has 8 divisors (see below), whose sum is σ = 1653288168. Its totient is φ = 1416582144.

The previous prime is 1534913389. The next prime is 1534913453. The reversal of 1534913393 is 3933194351.

It can be written as a sum of positive squares in 4 ways, for example, as 460188304 + 1074725089 = 21452^2 + 32783^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1534913393 - 2² = 1534913389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1534913393.

It is not an unprimeable number, because it can be changed into a prime (1534913333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129971 + ... + 141287.

It is an arithmetic number, because the mean of its divisors is an integer number (206661021).

Almost surely, 2^1534913393 is an apocalyptic number.

1534913393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1534913393 is a deficient number, since it is larger than the sum of its proper divisors (118374775).

1534913393 is a wasteful number, since it uses less digits than its factorization.

1534913393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763.

The product of its digits is 131220, while the sum is 41.

The square root of 1534913393 is about 39177.9707616410. The cubic root of 1534913393 is about 1153.5275159380.

The spelling of 1534913393 in words is "one billion, five hundred thirty-four million, nine hundred thirteen thousand, three hundred ninety-three".