103621019 has 2 divisors, whose sum is σ = 103621020. Its totient is φ = 103621018.

The previous prime is 103620997. The next prime is 103621027. The reversal of 103621019 is 910126301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103621019 is a prime.

It is a super-3 number, since 3×103621019³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 103620985 and 103621003.

It is not a weakly prime, because it can be changed into another prime (103621039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51810509 + 51810510.

It is an arithmetic number, because the mean of its divisors is an integer number (51810510).

Almost surely, 2^103621019 is an apocalyptic number.

103621019 is a deficient number, since it is larger than the sum of its proper divisors (1).

103621019 is an equidigital number, since it uses as much as digits as its factorization.

103621019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 103621019 is about 10179.4409964398. The cubic root of 103621019 is about 469.6950171690.

The spelling of 103621019 in words is "one hundred three million, six hundred twenty-one thousand, nineteen".