1370500081 has 2 divisors, whose sum is σ = 1370500082. Its totient is φ = 1370500080.

The previous prime is 1370500051. The next prime is 1370500093. The reversal of 1370500081 is 1800050731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1358659600 + 11840481 = 36860^2 + 3441^2 .

It is an emirp because it is prime and its reverse (1800050731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1370500081 - 2⁷ = 1370499953 is a prime.

It is a super-2 number, since 2×1370500081² = 3756540944042013122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1370500031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685250040 + 685250041.

It is an arithmetic number, because the mean of its divisors is an integer number (685250041).

Almost surely, 2^1370500081 is an apocalyptic number.

It is an amenable number.

1370500081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1370500081 is an equidigital number, since it uses as much as digits as its factorization.

1370500081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1370500081 is about 37020.2658148209. The cubic root of 1370500081 is about 1110.7756613470.

The spelling of 1370500081 in words is "one billion, three hundred seventy million, five hundred thousand, eighty-one".