1393538063 has 4 divisors (see below), whose sum is σ = 1419831288. Its totient is φ = 1367244840.

The previous prime is 1393538057. The next prime is 1393538119. The reversal of 1393538063 is 3608353931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1393538063 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 1393538063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395538063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13146533 + ... + 13146638.

It is an arithmetic number, because the mean of its divisors is an integer number (354957822).

Almost surely, 2^1393538063 is an apocalyptic number.

1393538063 is a deficient number, since it is larger than the sum of its proper divisors (26293225).

1393538063 is an equidigital number, since it uses as much as digits as its factorization.

1393538063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26293224.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 1393538063 is about 37330.1227295063. The cubic root of 1393538063 is about 1116.9651210955.

The spelling of 1393538063 in words is "one billion, three hundred ninety-three million, five hundred thirty-eight thousand, sixty-three".