1522440402145 has 8 divisors (see below), whose sum is σ = 1967461442856. Its totient is φ = 1124263681536.

The previous prime is 1522440402139. The next prime is 1522440402163. The reversal of 1522440402145 is 5412040442251.

It can be written as a sum of positive squares in 4 ways, for example, as 11891248209 + 1510549153936 = 109047^2 + 1229044^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1522440402145 - 2⁷ = 1522440402017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1522440402145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11711079952 + ... + 11711080081.

It is an arithmetic number, because the mean of its divisors is an integer number (245932680357).

Almost surely, 2^{1522440402145} is an apocalyptic number.

It is an amenable number.

1522440402145 is a deficient number, since it is larger than the sum of its proper divisors (445021040711).

1522440402145 is a wasteful number, since it uses less digits than its factorization.

1522440402145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23422160051.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 1522440402145 its reverse (5412040442251), we get a palindrome (6934480844396).

The spelling of 1522440402145 in words is "one trillion, five hundred twenty-two billion, four hundred forty million, four hundred two thousand, one hundred forty-five".