104026981 has 4 divisors (see below), whose sum is σ = 104053600. Its totient is φ = 104000364.

The previous prime is 104026931. The next prime is 104026997. The reversal of 104026981 is 189620401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104026981 is a prime.

It is a super-2 number, since 2×104026981² = 21643225551948722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104026931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6171 + ... + 15688.

It is an arithmetic number, because the mean of its divisors is an integer number (26013400).

Almost surely, 2^104026981 is an apocalyptic number.

It is an amenable number.

104026981 is a deficient number, since it is larger than the sum of its proper divisors (26619).

104026981 is an equidigital number, since it uses as much as digits as its factorization.

104026981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26618.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 104026981 is about 10199.3617937595. The cubic root of 104026981 is about 470.3076015671.

The spelling of 104026981 in words is "one hundred four million, twenty-six thousand, nine hundred eighty-one".