104991026 has 12 divisors (see below), whose sum is σ = 183198798. Its totient is φ = 44996112.

The previous prime is 104991011. The next prime is 104991083. The reversal of 104991026 is 620199401.

It can be written as a sum of positive squares in only one way, i.e., 84732025 + 20259001 = 9205^2 + 4501^2 .

It is a super-2 number, since 2×104991026² = 22046231081065352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104990983 and 104991001.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535571 + ... + 535766.

Almost surely, 2^104991026 is an apocalyptic number.

104991026 is a deficient number, since it is larger than the sum of its proper divisors (78207772).

104991026 is a wasteful number, since it uses less digits than its factorization.

104991026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071353 (or 1071346 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 104991026 is about 10246.5128702403. The cubic root of 104991026 is about 471.7559574628.

The spelling of 104991026 in words is "one hundred four million, nine hundred ninety-one thousand, twenty-six".