1138972 has 6 divisors (see below), whose sum is σ = 1993208. Its totient is φ = 569484.

The previous prime is 1138967. The next prime is 1138979. The reversal of 1138972 is 2798311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142368 + ... + 142375.

2^1138972 is an apocalyptic number.

It is an amenable number.

1138972 is a deficient number, since it is larger than the sum of its proper divisors (854236).

1138972 is a wasteful number, since it uses less digits than its factorization.

1138972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284747 (or 284745 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1138972 is about 1067.2263115197. The cubic root of 1138972 is about 104.4329828309.

It can be divided in two parts, 11 and 38972, that added together give a palindrome (38983).

The spelling of 1138972 in words is "one million, one hundred thirty-eight thousand, nine hundred seventy-two".