12440151452 has 12 divisors (see below), whose sum is σ = 21834867600. Its totient is φ = 6201617856.

The previous prime is 12440151443. The next prime is 12440151461. The reversal of 12440151452 is 25415104421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12440151443) and next prime (12440151461).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4612952 + ... + 4615647.

It is an arithmetic number, because the mean of its divisors is an integer number (1819572300).

Almost surely, 2^12440151452 is an apocalyptic number.

It is an amenable number.

12440151452 is a deficient number, since it is larger than the sum of its proper divisors (9394716148).

12440151452 is a wasteful number, since it uses less digits than its factorization.

12440151452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9228940 (or 9228938 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 12440151452 its reverse (25415104421), we get a palindrome (37855255873).

The spelling of 12440151452 in words is "twelve billion, four hundred forty million, one hundred fifty-one thousand, four hundred fifty-two".