1239693053 has 4 divisors (see below), whose sum is σ = 1268523168. Its totient is φ = 1210862940.

The previous prime is 1239693011. The next prime is 1239693061. The reversal of 1239693053 is 3503969321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3503969321 = 38327 ⋅91423.

It is a cyclic number.

It is not a de Polignac number, because 1239693053 - 2¹⁶ = 1239627517 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 1239693053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239693083) 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, 14414993 + ... + 14415078.

It is an arithmetic number, because the mean of its divisors is an integer number (317130792).

Almost surely, 2^1239693053 is an apocalyptic number.

It is an amenable number.

1239693053 is a deficient number, since it is larger than the sum of its proper divisors (28830115).

1239693053 is an equidigital number, since it uses as much as digits as its factorization.

1239693053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28830114.

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

The square root of 1239693053 is about 35209.2750990417. The cubic root of 1239693053 is about 1074.2484172915.

The spelling of 1239693053 in words is "one billion, two hundred thirty-nine million, six hundred ninety-three thousand, fifty-three".