1375007 has 2 divisors, whose sum is σ = 1375008. Its totient is φ = 1375006.

The previous prime is 1374983. The next prime is 1375013. The reversal of 1375007 is 7005731.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1375007 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687503 + 687504.

It is an arithmetic number, because the mean of its divisors is an integer number (687504).

2^1375007 is an apocalyptic number.

1375007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375007 is an equidigital number, since it uses as much as digits as its factorization.

1375007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 1375007 is about 1172.6069247621. The cubic root of 1375007 is about 111.1991932295.

The spelling of 1375007 in words is "one million, three hundred seventy-five thousand, seven".