1370885449 has 2 divisors, whose sum is σ = 1370885450. Its totient is φ = 1370885448.

The previous prime is 1370885447. The next prime is 1370885497. The reversal of 1370885449 is 9445880731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1211040000 + 159845449 = 34800^2 + 12643^2 .

It is a cyclic number.

It is not a de Polignac number, because 1370885449 - 2¹ = 1370885447 is a prime.

Together with 1370885447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1370885443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685442724 + 685442725.

It is an arithmetic number, because the mean of its divisors is an integer number (685442725).

Almost surely, 2^1370885449 is an apocalyptic number.

It is an amenable number.

1370885449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370885449 is an equidigital number, since it uses as much as digits as its factorization.

1370885449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 1370885449 is about 37025.4702738534. The cubic root of 1370885449 is about 1110.8797638047.

The spelling of 1370885449 in words is "one billion, three hundred seventy million, eight hundred eighty-five thousand, four hundred forty-nine".