104521965 has 16 divisors (see below), whose sum is σ = 168304128. Its totient is φ = 55388736.

The previous prime is 104521961. The next prime is 104521973. The reversal of 104521965 is 569125401.

It is not a de Polignac number, because 104521965 - 2² = 104521961 is a prime.

It is a super-2 number, since 2×104521965² = 21849682334922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104521961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19837 + ... + 24546.

It is an arithmetic number, because the mean of its divisors is an integer number (10519008).

Almost surely, 2^104521965 is an apocalyptic number.

104521965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104521965 is a deficient number, since it is larger than the sum of its proper divisors (63782163).

104521965 is a wasteful number, since it uses less digits than its factorization.

104521965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44548.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 104521965 is about 10223.5984369497. The cubic root of 104521965 is about 471.0523650201.

The spelling of 104521965 in words is "one hundred four million, five hundred twenty-one thousand, nine hundred sixty-five".