20040115145 has 8 divisors (see below), whose sum is σ = 24086253120. Its totient is φ = 16006682160.

The previous prime is 20040115111. The next prime is 20040115169. The reversal of 20040115145 is 54151104002.

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

It is a de Polignac number, because none of the positive numbers 2^k-20040115145 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20040115145.

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, 3172775 + ... + 3179084.

It is an arithmetic number, because the mean of its divisors is an integer number (3010781640).

Almost surely, 2^20040115145 is an apocalyptic number.

It is an amenable number.

20040115145 is a deficient number, since it is larger than the sum of its proper divisors (4046137975).

20040115145 is an equidigital number, since it uses as much as digits as its factorization.

20040115145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6352495.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 20040115145 its reverse (54151104002), we get a palindrome (74191219147).

The spelling of 20040115145 in words is "twenty billion, forty million, one hundred fifteen thousand, one hundred forty-five".