104951009 has 2 divisors, whose sum is σ = 104951010. Its totient is φ = 104951008.

The previous prime is 104950987. The next prime is 104951017. The reversal of 104951009 is 900159401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87478609 + 17472400 = 9353^2 + 4180^2 .

It is a cyclic number.

It is not a de Polignac number, because 104951009 - 2²⁴ = 88173793 is a prime.

It is a super-2 number, since 2×104951009² = 22029428580236162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104951039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52475504 + 52475505.

It is an arithmetic number, because the mean of its divisors is an integer number (52475505).

Almost surely, 2^104951009 is an apocalyptic number.

It is an amenable number.

104951009 is a deficient number, since it is larger than the sum of its proper divisors (1).

104951009 is an equidigital number, since it uses as much as digits as its factorization.

104951009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 104951009 is about 10244.5599710285. The cubic root of 104951009 is about 471.6960137456.

The spelling of 104951009 in words is "one hundred four million, nine hundred fifty-one thousand, nine".