104209190145 has 32 divisors (see below), whose sum is σ = 185893142400. Its totient is φ = 55388526912.

The previous prime is 104209190101. The next prime is 104209190159. The reversal of 104209190145 is 541091902401.

It is a happy number.

104209190145 is a `hidden beast` number, since 1 + 0 + 420 + 9 + 1 + 90 + 145 = 666.

It is not a de Polignac number, because 104209190145 - 2¹⁶ = 104209124609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1277715 + ... + 1356824.

It is an arithmetic number, because the mean of its divisors is an integer number (5809160700).

Almost surely, 2^104209190145 is an apocalyptic number.

104209190145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104209190145 is a deficient number, since it is larger than the sum of its proper divisors (81683952255).

104209190145 is a wasteful number, since it uses less digits than its factorization.

104209190145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634846 (or 2634840 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 104209190145 in words is "one hundred four billion, two hundred nine million, one hundred ninety thousand, one hundred forty-five".