1138125 has 20 divisors (see below), whose sum is σ = 1899392. Its totient is φ = 606000.

The previous prime is 1138117. The next prime is 1138127. The reversal of 1138125 is 5218311.

It is not a de Polignac number, because 1138125 - 2³ = 1138117 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1572 + ... + 2178.

2^1138125 is an apocalyptic number.

1138125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1138125 is a deficient number, since it is larger than the sum of its proper divisors (761267).

1138125 is an frugal number, since it uses more digits than its factorization.

1138125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 615 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The square root of 1138125 is about 1066.8294146676. The cubic root of 1138125 is about 104.4070891092.

The spelling of 1138125 in words is "one million, one hundred thirty-eight thousand, one hundred twenty-five".