103129919 has 2 divisors, whose sum is σ = 103129920. Its totient is φ = 103129918.

The previous prime is 103129913. The next prime is 103129979. The reversal of 103129919 is 919921301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103129919 - 2¹² = 103125823 is a prime.

It is a super-2 number, since 2×103129919² = 21271560385893122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103129913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51564959 + 51564960.

It is an arithmetic number, because the mean of its divisors is an integer number (51564960).

Almost surely, 2^103129919 is an apocalyptic number.

103129919 is a deficient number, since it is larger than the sum of its proper divisors (1).

103129919 is an equidigital number, since it uses as much as digits as its factorization.

103129919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 103129919 is about 10155.2901977245. The cubic root of 103129919 is about 468.9518198438.

The spelling of 103129919 in words is "one hundred three million, one hundred twenty-nine thousand, nine hundred nineteen".