101004809 has 2 divisors, whose sum is σ = 101004810. Its totient is φ = 101004808.

The previous prime is 101004797. The next prime is 101004821. The reversal of 101004809 is 908400101.

It is a balanced prime because it is at equal distance from previous prime (101004797) and next prime (101004821).

It can be written as a sum of positive squares in only one way, i.e., 91145209 + 9859600 = 9547^2 + 3140^2 .

It is a cyclic number.

It is not a de Polignac number, because 101004809 - 2⁴ = 101004793 is a prime.

It is a super-2 number, since 2×101004809² = 20403942882252962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101004829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50502404 + 50502405.

It is an arithmetic number, because the mean of its divisors is an integer number (50502405).

Almost surely, 2^101004809 is an apocalyptic number.

It is an amenable number.

101004809 is a deficient number, since it is larger than the sum of its proper divisors (1).

101004809 is an equidigital number, since it uses as much as digits as its factorization.

101004809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 101004809 is about 10050.1148749654. The cubic root of 101004809 is about 465.7083419366.

The spelling of 101004809 in words is "one hundred one million, four thousand, eight hundred nine".