43145240153 has 4 divisors (see below), whose sum is σ = 43161481140. Its totient is φ = 43128999168.

The previous prime is 43145240113. The next prime is 43145240167. The reversal of 43145240153 is 35104254134.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11185812169 + 31959427984 = 105763^2 + 178772^2 .

It is a cyclic number.

It is not a de Polignac number, because 43145240153 - 2³⁴ = 25965370969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43145240113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8116508 + ... + 8121821.

It is an arithmetic number, because the mean of its divisors is an integer number (10790370285).

Almost surely, 2^43145240153 is an apocalyptic number.

It is an amenable number.

43145240153 is a deficient number, since it is larger than the sum of its proper divisors (16240987).

43145240153 is a wasteful number, since it uses less digits than its factorization.

43145240153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240986.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 43145240153 its reverse (35104254134), we get a palindrome (78249494287).

The spelling of 43145240153 in words is "forty-three billion, one hundred forty-five million, two hundred forty thousand, one hundred fifty-three".