1245502240000 has 90 divisors (see below), whose sum is σ = 3106679989490. Its totient is φ = 498200832000.

The previous prime is 1245502239979. The next prime is 1245502240001. The reversal of 1245502240000 is 422055421.

It can be written as a sum of positive squares in 5 ways, for example, as 101766104064 + 1143736135936 = 319008^2 + 1069456^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245502240001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3732195 + ... + 4052194.

Almost surely, 2^{1245502240000} is an apocalyptic number.

1245502240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245502240000 is an abundant number, since it is smaller than the sum of its proper divisors (1861177749490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245502240000 is an frugal number, since it uses more digits than its factorization.

1245502240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7784425 (or 7784396 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 1245502240000 its reverse (422055421), we get a palindrome (1245924295421).

The spelling of 1245502240000 in words is "one trillion, two hundred forty-five billion, five hundred two million, two hundred forty thousand".