1388675253 has 16 divisors (see below), whose sum is σ = 2118260736. Its totient is φ = 792709680.

The previous prime is 1388675227. The next prime is 1388675257. The reversal of 1388675253 is 3525768831.

It is not a de Polignac number, because 1388675253 - 2⁵ = 1388675221 is a prime.

It is a super-2 number, since 2×1388675253² = 3856837916589228018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388675257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12993 + ... + 54278.

It is an arithmetic number, because the mean of its divisors is an integer number (132391296).

Almost surely, 2^1388675253 is an apocalyptic number.

It is an amenable number.

1388675253 is a deficient number, since it is larger than the sum of its proper divisors (729585483).

1388675253 is an equidigital number, since it uses as much as digits as its factorization.

1388675253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68264.

The product of its digits is 1209600, while the sum is 48.

The square root of 1388675253 is about 37264.9332885489. The cubic root of 1388675253 is about 1115.6643745756.

The spelling of 1388675253 in words is "one billion, three hundred eighty-eight million, six hundred seventy-five thousand, two hundred fifty-three".