1240453140455 has 8 divisors (see below), whose sum is σ = 1516629500352. Its totient is φ = 973638691168.

The previous prime is 1240453140439. The next prime is 1240453140523. The reversal of 1240453140455 is 5540413540421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240453140455 - 2⁴ = 1240453140439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2340477359 + ... + 2340477888.

It is an arithmetic number, because the mean of its divisors is an integer number (189578687544).

Almost surely, 2^{1240453140455} is an apocalyptic number.

1240453140455 is a deficient number, since it is larger than the sum of its proper divisors (276176359897).

1240453140455 is an equidigital number, since it uses as much as digits as its factorization.

1240453140455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680955305.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 1240453140455 its reverse (5540413540421), we get a palindrome (6780866680876).

The spelling of 1240453140455 in words is "one trillion, two hundred forty billion, four hundred fifty-three million, one hundred forty thousand, four hundred fifty-five".