1372138 has 8 divisors (see below), whose sum is σ = 2179332. Its totient is φ = 645696.

The previous prime is 1372127. The next prime is 1372139. The reversal of 1372138 is 8312731.

It can be written as a sum of positive squares in 2 ways, for example, as 1338649 + 33489 = 1157^2 + 183^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1372139) 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, 20145 + ... + 20212.

2^1372138 is an apocalyptic number.

1372138 is a deficient number, since it is larger than the sum of its proper divisors (807194).

1372138 is a wasteful number, since it uses less digits than its factorization.

1372138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40376.

The product of its digits is 1008, while the sum is 25.

The square root of 1372138 is about 1171.3829433622. The cubic root of 1372138 is about 111.1217990460.

Adding to 1372138 its reverse (8312731), we get a palindrome (9684869).

The spelling of 1372138 in words is "one million, three hundred seventy-two thousand, one hundred thirty-eight".