1245523145153 has 24 divisors (see below), whose sum is σ = 1477565077608. Its totient is φ = 1046487326976.

The previous prime is 1245523145147. The next prime is 1245523145173. The reversal of 1245523145153 is 3515413255421.

It can be written as a sum of positive squares in 4 ways, for example, as 941885778064 + 303637367089 = 970508^2 + 551033^2 .

It is not a de Polignac number, because 1245523145153 - 2⁶ = 1245523145089 is a prime.

It is a super-2 number, since 2×1245523145153² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245523145153.

It is not an unprimeable number, because it can be changed into a prime (1245523145173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2619125 + ... + 3057917.

It is an arithmetic number, because the mean of its divisors is an integer number (61565211567).

Almost surely, 2^{1245523145153} is an apocalyptic number.

It is an amenable number.

1245523145153 is a deficient number, since it is larger than the sum of its proper divisors (232041932455).

1245523145153 is a wasteful number, since it uses less digits than its factorization.

1245523145153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439953 (or 439946 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

The spelling of 1245523145153 in words is "one trillion, two hundred forty-five billion, five hundred twenty-three million, one hundred forty-five thousand, one hundred fifty-three".