1440125522257 has 2 divisors, whose sum is σ = 1440125522258. Its totient is φ = 1440125522256.

The previous prime is 1440125522249. The next prime is 1440125522287. The reversal of 1440125522257 is 7522255210441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221292424641 + 218833097616 = 1105121^2 + 467796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440125522257 - 2³ = 1440125522249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440125522287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720062761128 + 720062761129.

It is an arithmetic number, because the mean of its divisors is an integer number (720062761129).

Almost surely, 2^{1440125522257} is an apocalyptic number.

It is an amenable number.

1440125522257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440125522257 is an equidigital number, since it uses as much as digits as its factorization.

1440125522257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224000, while the sum is 40.

The spelling of 1440125522257 in words is "one trillion, four hundred forty billion, one hundred twenty-five million, five hundred twenty-two thousand, two hundred fifty-seven".