104821545 has 32 divisors (see below), whose sum is σ = 173145600. Its totient is φ = 54123264.

The previous prime is 104821531. The next prime is 104821559. The reversal of 104821545 is 545128401.

It is an interprime number because it is at equal distance from previous prime (104821531) and next prime (104821559).

It is not a de Polignac number, because 104821545 - 2⁴ = 104821529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61971 + ... + 63639.

It is an arithmetic number, because the mean of its divisors is an integer number (5410800).

Almost surely, 2^104821545 is an apocalyptic number.

104821545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104821545 is a deficient number, since it is larger than the sum of its proper divisors (68324055).

104821545 is a wasteful number, since it uses less digits than its factorization.

104821545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 104821545 is about 10238.2393505915. The cubic root of 104821545 is about 471.5019778779.

Adding to 104821545 its reverse (545128401), we get a palindrome (649949946).

The spelling of 104821545 in words is "one hundred four million, eight hundred twenty-one thousand, five hundred forty-five".