1145243234145 has 32 divisors (see below), whose sum is σ = 1895979254400. Its totient is φ = 589608681984.

The previous prime is 1145243234143. The next prime is 1145243234159. The reversal of 1145243234145 is 5414323425411.

It is not a de Polignac number, because 1145243234145 - 2¹ = 1145243234143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145243234143) 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, 1778754 + ... + 2335476.

It is an arithmetic number, because the mean of its divisors is an integer number (59249351700).

Almost surely, 2^{1145243234145} is an apocalyptic number.

1145243234145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145243234145 is a deficient number, since it is larger than the sum of its proper divisors (750736020255).

1145243234145 is a wasteful number, since it uses less digits than its factorization.

1145243234145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561489.

The product of its digits is 230400, while the sum is 39.

Adding to 1145243234145 its reverse (5414323425411), we get a palindrome (6559566659556).

The spelling of 1145243234145 in words is "one trillion, one hundred forty-five billion, two hundred forty-three million, two hundred thirty-four thousand, one hundred forty-five".