1240332245145 has 48 divisors (see below), whose sum is σ = 2457873005952. Its totient is φ = 566816590080.

The previous prime is 1240332245077. The next prime is 1240332245153. The reversal of 1240332245145 is 5415422330421.

It is a happy number.

1240332245145 is a `hidden beast` number, since 1 + 2 + 40 + 332 + 245 + 1 + 45 = 666.

It is not a de Polignac number, because 1240332245145 - 2⁸ = 1240332244889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263490 + ... + 1596900.

It is an arithmetic number, because the mean of its divisors is an integer number (51205687624).

Almost surely, 2^{1240332245145} is an apocalyptic number.

1240332245145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1240332245145 is a deficient number, since it is larger than the sum of its proper divisors (1217540760807).

1240332245145 is a wasteful number, since it uses less digits than its factorization.

1240332245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336382 (or 1336379 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 1240332245145 its reverse (5415422330421), we get a palindrome (6655754575566).

The spelling of 1240332245145 in words is "one trillion, two hundred forty billion, three hundred thirty-two million, two hundred forty-five thousand, one hundred forty-five".