1375659 has 6 divisors (see below), whose sum is σ = 1987076. Its totient is φ = 917100.

The previous prime is 1375639. The next prime is 1375669. The reversal of 1375659 is 9565731.

It is a happy number.

It is not a de Polignac number, because 1375659 - 2⁷ = 1375531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76417 + ... + 76434.

2^1375659 is an apocalyptic number.

1375659 is a deficient number, since it is larger than the sum of its proper divisors (611417).

1375659 is a wasteful number, since it uses less digits than its factorization.

1375659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152857 (or 152854 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 1375659 is about 1172.8849048393. The cubic root of 1375659 is about 111.2167665745.

The spelling of 1375659 in words is "one million, three hundred seventy-five thousand, six hundred fifty-nine".