1375567 has 2 divisors, whose sum is σ = 1375568. Its totient is φ = 1375566.

The previous prime is 1375547. The next prime is 1375571. The reversal of 1375567 is 7655731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1375567 - 2¹⁵ = 1342799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375547) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687783 + 687784.

It is an arithmetic number, because the mean of its divisors is an integer number (687784).

2^1375567 is an apocalyptic number.

1375567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375567 is an equidigital number, since it uses as much as digits as its factorization.

1375567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050, while the sum is 34.

The square root of 1375567 is about 1172.8456846491. The cubic root of 1375567 is about 111.2142872366.

The spelling of 1375567 in words is "one million, three hundred seventy-five thousand, five hundred sixty-seven".