1440000137 has 2 divisors, whose sum is σ = 1440000138. Its totient is φ = 1440000136.

The previous prime is 1440000131. The next prime is 1440000143. The reversal of 1440000137 is 7310000441.

It is a balanced prime because it is at equal distance from previous prime (1440000131) and next prime (1440000143).

It can be written as a sum of positive squares in only one way, i.e., 1039159696 + 400840441 = 32236^2 + 20021^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440000137 - 2²⁰ = 1438951561 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440000131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720000068 + 720000069.

It is an arithmetic number, because the mean of its divisors is an integer number (720000069).

Almost surely, 2^1440000137 is an apocalyptic number.

It is an amenable number.

1440000137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440000137 is an equidigital number, since it uses as much as digits as its factorization.

1440000137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1440000137 is about 37947.3337271540. Note that the first 3 decimals coincide. The cubic root of 1440000137 is about 1129.2432704689.

Adding to 1440000137 its reverse (7310000441), we get a palindrome (8750000578).

The spelling of 1440000137 in words is "one billion, four hundred forty million, one hundred thirty-seven", and thus it is an aban number.