104521402 has 16 divisors (see below), whose sum is σ = 159072480. Its totient is φ = 51500592.

The previous prime is 104521399. The next prime is 104521409. The reversal of 104521402 is 204125401.

It is a self number, because there is not a number n which added to its sum of digits gives 104521402.

It is not an unprimeable number, because it can be changed into a prime (104521409) 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 7 ways as a sum of consecutive naturals, for example, 121249 + ... + 122107.

It is an arithmetic number, because the mean of its divisors is an integer number (9942030).

Almost surely, 2^104521402 is an apocalyptic number.

104521402 is a deficient number, since it is larger than the sum of its proper divisors (54551078).

104521402 is an equidigital number, since it uses as much as digits as its factorization.

104521402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 104521402 is about 10223.5709025761. The cubic root of 104521402 is about 471.0515192554.

Adding to 104521402 its reverse (204125401), we get a palindrome (308646803).

The spelling of 104521402 in words is "one hundred four million, five hundred twenty-one thousand, four hundred two".