103405615609 has 2 divisors, whose sum is σ = 103405615610. Its totient is φ = 103405615608.

The previous prime is 103405615507. The next prime is 103405615619. The reversal of 103405615609 is 906516504301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103397618025 + 7997584 = 321555^2 + 2828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103405615609 is a prime.

It is not a weakly prime, because it can be changed into another prime (103405615619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51702807804 + 51702807805.

It is an arithmetic number, because the mean of its divisors is an integer number (51702807805).

Almost surely, 2^103405615609 is an apocalyptic number.

It is an amenable number.

103405615609 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405615609 is an equidigital number, since it uses as much as digits as its factorization.

103405615609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 103405615609 in words is "one hundred three billion, four hundred five million, six hundred fifteen thousand, six hundred nine".