1075649 has 2 divisors, whose sum is σ = 1075650. Its totient is φ = 1075648.

The previous prime is 1075643. The next prime is 1075651. The reversal of 1075649 is 9465701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868624 + 207025 = 932^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075649 - 2²⁰ = 27073 is a prime.

Together with 1075651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1075643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537824 + 537825.

It is an arithmetic number, because the mean of its divisors is an integer number (537825).

2^1075649 is an apocalyptic number.

It is an amenable number.

1075649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075649 is an equidigital number, since it uses as much as digits as its factorization.

1075649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1075649 is about 1037.1349960347. The cubic root of 1075649 is about 102.4605916322.

The spelling of 1075649 in words is "one million, seventy-five thousand, six hundred forty-nine".