1388625119 has 8 divisors (see below), whose sum is σ = 1590476448. Its totient is φ = 1187642880.

The previous prime is 1388625097. The next prime is 1388625149. The reversal of 1388625119 is 9115268831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1388625119 is a prime.

It is a super-2 number, since 2×1388625119² = 3856559442235528322, which contains 22 as substring.

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 1388625119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388625149) 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, 213842 + ... + 220239.

It is an arithmetic number, because the mean of its divisors is an integer number (198809556).

Almost surely, 2^1388625119 is an apocalyptic number.

1388625119 is a deficient number, since it is larger than the sum of its proper divisors (201851329).

1388625119 is an equidigital number, since it uses as much as digits as its factorization.

1388625119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434545.

The product of its digits is 103680, while the sum is 44.

The square root of 1388625119 is about 37264.2606125494. The cubic root of 1388625119 is about 1115.6509484966.

The spelling of 1388625119 in words is "one billion, three hundred eighty-eight million, six hundred twenty-five thousand, one hundred nineteen".