104145205251 has 16 divisors (see below), whose sum is σ = 139243006080. Its totient is φ = 69238975680.

The previous prime is 104145205211. The next prime is 104145205253. The reversal of 104145205251 is 152502541401.

It is not a de Polignac number, because 104145205251 - 2¹⁷ = 104145074179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104145205253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2086140 + ... + 2135478.

It is an arithmetic number, because the mean of its divisors is an integer number (8702687880).

Almost surely, 2^104145205251 is an apocalyptic number.

104145205251 is a deficient number, since it is larger than the sum of its proper divisors (35097800829).

104145205251 is a wasteful number, since it uses less digits than its factorization.

104145205251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51266.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 104145205251 its reverse (152502541401), we get a palindrome (256647746652).

The spelling of 104145205251 in words is "one hundred four billion, one hundred forty-five million, two hundred five thousand, two hundred fifty-one".