1375481 has 2 divisors, whose sum is σ = 1375482. Its totient is φ = 1375480.

The previous prime is 1375457. The next prime is 1375513. The reversal of 1375481 is 1845731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 490000 = 941^2 + 700^2 .

It is an emirp because it is prime and its reverse (1845731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375481 - 2⁶ = 1375417 is a prime.

It is a super-2 number, since 2×1375481² = 3783895962722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1375411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687740 + 687741.

It is an arithmetic number, because the mean of its divisors is an integer number (687741).

2^1375481 is an apocalyptic number.

It is an amenable number.

1375481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375481 is an equidigital number, since it uses as much as digits as its factorization.

1375481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 1375481 is about 1172.8090211113. The cubic root of 1375481 is about 111.2119694947.

The spelling of 1375481 in words is "one million, three hundred seventy-five thousand, four hundred eighty-one".