1320000075137 has 2 divisors, whose sum is σ = 1320000075138. Its totient is φ = 1320000075136.

The previous prime is 1320000075127. The next prime is 1320000075157. The reversal of 1320000075137 is 7315700000231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869824830736 + 450175244401 = 932644^2 + 670951^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320000075137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320000075127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660000037568 + 660000037569.

It is an arithmetic number, because the mean of its divisors is an integer number (660000037569).

Almost surely, 2^{1320000075137} is an apocalyptic number.

It is an amenable number.

1320000075137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320000075137 is an equidigital number, since it uses as much as digits as its factorization.

1320000075137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 29.

Adding to 1320000075137 its reverse (7315700000231), we get a palindrome (8635700075368).

The spelling of 1320000075137 in words is "one trillion, three hundred twenty billion, seventy-five thousand, one hundred thirty-seven".