1245514231525 has 24 divisors (see below), whose sum is σ = 1612309198464. Its totient is φ = 952662110400.

The previous prime is 1245514231523. The next prime is 1245514231537. The reversal of 1245514231525 is 5251324155421.

It is not a de Polignac number, because 1245514231525 - 2¹ = 1245514231523 is a prime.

It is a super-2 number, since 2×1245514231525² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245514231523) 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, 802120 + ... + 1770430.

It is an arithmetic number, because the mean of its divisors is an integer number (67179549936).

Almost surely, 2^{1245514231525} is an apocalyptic number.

It is an amenable number.

1245514231525 is a deficient number, since it is larger than the sum of its proper divisors (366794966939).

1245514231525 is a wasteful number, since it uses less digits than its factorization.

1245514231525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970581 (or 970576 counting only the distinct ones).

The product of its digits is 240000, while the sum is 40.

Adding to 1245514231525 its reverse (5251324155421), we get a palindrome (6496838386946).

The spelling of 1245514231525 in words is "one trillion, two hundred forty-five billion, five hundred fourteen million, two hundred thirty-one thousand, five hundred twenty-five".