1303138 has 8 divisors (see below), whose sum is σ = 1976940. Its totient is φ = 644160.

The previous prime is 1303129. The next prime is 1303139. The reversal of 1303138 is 8313031.

It can be written as a sum of positive squares in 2 ways, for example, as 946729 + 356409 = 973^2 + 597^2 .

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 (1303139) 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, 3483 + ... + 3838.

2^1303138 is an apocalyptic number.

1303138 is a deficient number, since it is larger than the sum of its proper divisors (673802).

1303138 is an equidigital number, since it uses as much as digits as its factorization.

1303138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1303138 is about 1141.5506997063. The cubic root of 1303138 is about 109.2270328937.

Adding to 1303138 its reverse (8313031), we get a palindrome (9616169).

It can be divided in two parts, 130313 and 8, that added together give a 4-th power (130321 = 19⁴).

The spelling of 1303138 in words is "one million, three hundred three thousand, one hundred thirty-eight".