12245354540 has 12 divisors (see below), whose sum is σ = 25715244576. Its totient is φ = 4898141808.

The previous prime is 12245354519. The next prime is 12245354549. The reversal of 12245354540 is 4545354221.

It is a super-2 number, since 2×12245354540² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12245354540.

It is not an unprimeable number, because it can be changed into a prime (12245354549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306133844 + ... + 306133883.

It is an arithmetic number, because the mean of its divisors is an integer number (2142937048).

Almost surely, 2^12245354540 is an apocalyptic number.

12245354540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12245354540 is an abundant number, since it is smaller than the sum of its proper divisors (13469890036).

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

12245354540 is a wasteful number, since it uses less digits than its factorization.

12245354540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612267736 (or 612267734 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 12245354540 in words is "twelve billion, two hundred forty-five million, three hundred fifty-four thousand, five hundred forty".