40142213073145 has 4 divisors (see below), whose sum is σ = 48170655687780. Its totient is φ = 32113770458512.

The previous prime is 40142213073143. The next prime is 40142213073167. The reversal of 40142213073145 is 54137031224104.

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 26657777155689 + 13484435917456 = 5163117^2 + 3672116^2 .

It is a cyclic number.

It is not a de Polignac number, because 40142213073145 - 2¹ = 40142213073143 is a prime.

It is a super-2 number, since 2×40142213073145² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40142213073143) 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, 4014221307310 + ... + 4014221307319.

It is an arithmetic number, because the mean of its divisors is an integer number (12042663921945).

Almost surely, 2^{40142213073145} is an apocalyptic number.

It is an amenable number.

40142213073145 is a deficient number, since it is larger than the sum of its proper divisors (8028442614635).

40142213073145 is an equidigital number, since it uses as much as digits as its factorization.

40142213073145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028442614634.

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 40142213073145 its reverse (54137031224104), we get a palindrome (94279244297249).

The spelling of 40142213073145 in words is "forty trillion, one hundred forty-two billion, two hundred thirteen million, seventy-three thousand, one hundred forty-five".