1338751 has 2 divisors, whose sum is σ = 1338752. Its totient is φ = 1338750.

The previous prime is 1338749. The next prime is 1338781. The reversal of 1338751 is 1578331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1338751 - 2¹ = 1338749 is a prime.

Together with 1338749, it forms a pair of twin primes.

1338751 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1338731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669375 + 669376.

It is an arithmetic number, because the mean of its divisors is an integer number (669376).

2^1338751 is an apocalyptic number.

1338751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338751 is an equidigital number, since it uses as much as digits as its factorization.

1338751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 1338751 is about 1157.0440786763. The cubic root of 1338751 is about 110.2131130209.

The spelling of 1338751 in words is "one million, three hundred thirty-eight thousand, seven hundred fifty-one".