1145251202140 has 96 divisors (see below), whose sum is σ = 2564640691200. Its totient is φ = 428331421440.

The previous prime is 1145251202111. The next prime is 1145251202143. The reversal of 1145251202140 is 412021525411.

It is a junction number, because it is equal to n+sod(n) for n = 1145251202099 and 1145251202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145251202143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101191762 + ... + 101203078.

It is an arithmetic number, because the mean of its divisors is an integer number (26715007200).

Almost surely, 2^{1145251202140} is an apocalyptic number.

1145251202140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145251202140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282320345600).

1145251202140 is an abundant number, since it is smaller than the sum of its proper divisors (1419389489060).

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

1145251202140 is a wasteful number, since it uses less digits than its factorization.

1145251202140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14795 (or 14793 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 1145251202140 its reverse (412021525411), we get a palindrome (1557272727551).

The spelling of 1145251202140 in words is "one trillion, one hundred forty-five billion, two hundred fifty-one million, two hundred two thousand, one hundred forty".