40124213133145 has 8 divisors (see below), whose sum is σ = 48645437778504. Its totient is φ = 31768449160704.

The previous prime is 40124213133133. The next prime is 40124213133227. The reversal of 40124213133145 is 54133131242104.

It can be written as a sum of positive squares in 4 ways, for example, as 1084672258576 + 39039540874569 = 1041476^2 + 6248163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40124213133145 - 2²⁵ = 40124179578713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40124213133145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41365167694 + ... + 41365168663.

It is an arithmetic number, because the mean of its divisors is an integer number (6080679722313).

Almost surely, 2^{40124213133145} is an apocalyptic number.

It is an amenable number.

40124213133145 is a deficient number, since it is larger than the sum of its proper divisors (8521224645359).

40124213133145 is an equidigital number, since it uses as much as digits as its factorization.

40124213133145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82730336459.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 40124213133145 its reverse (54133131242104), we get a palindrome (94257344375249).

The spelling of 40124213133145 in words is "forty trillion, one hundred twenty-four billion, two hundred thirteen million, one hundred thirty-three thousand, one hundred forty-five".