1370909 has 2 divisors, whose sum is σ = 1370910. Its totient is φ = 1370908.

The previous prime is 1370899. The next prime is 1370921. The reversal of 1370909 is 9090731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 765625 + 605284 = 875^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370909 - 2¹⁶ = 1305373 is a prime.

1370909 is a modest number, since divided by 909 gives 137 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685454 + 685455.

It is an arithmetic number, because the mean of its divisors is an integer number (685455).

2^1370909 is an apocalyptic number.

It is an amenable number.

1370909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370909 is an equidigital number, since it uses as much as digits as its factorization.

1370909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1370909 is about 1170.8582322382. The cubic root of 1370909 is about 111.0886125187.

The spelling of 1370909 in words is "one million, three hundred seventy thousand, nine hundred nine".