1240152415445 has 32 divisors (see below), whose sum is σ = 1582928303616. Its totient is φ = 929495347200.

The previous prime is 1240152415441. The next prime is 1240152415501. The reversal of 1240152415445 is 5445142510421.

It is not a de Polignac number, because 1240152415445 - 2² = 1240152415441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1240152415399 and 1240152415408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240152415441) 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, 54212360 + ... + 54235230.

It is an arithmetic number, because the mean of its divisors is an integer number (49466509488).

Almost surely, 2^{1240152415445} is an apocalyptic number.

It is an amenable number.

1240152415445 is a deficient number, since it is larger than the sum of its proper divisors (342775888171).

1240152415445 is a wasteful number, since it uses less digits than its factorization.

1240152415445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25781.

The product of its (nonzero) digits is 128000, while the sum is 38.

Adding to 1240152415445 its reverse (5445142510421), we get a palindrome (6685294925866).

The spelling of 1240152415445 in words is "one trillion, two hundred forty billion, one hundred fifty-two million, four hundred fifteen thousand, four hundred forty-five".