105403919 has 2 divisors, whose sum is σ = 105403920. Its totient is φ = 105403918.

The previous prime is 105403901. The next prime is 105403957. The reversal of 105403919 is 919304501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105403919 is a prime.

It is a super-2 number, since 2×105403919² = 22219972281117122, 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 (105403979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52701959 + 52701960.

It is an arithmetic number, because the mean of its divisors is an integer number (52701960).

Almost surely, 2^105403919 is an apocalyptic number.

105403919 is a deficient number, since it is larger than the sum of its proper divisors (1).

105403919 is an equidigital number, since it uses as much as digits as its factorization.

105403919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 105403919 is about 10266.6410768079. The cubic root of 105403919 is about 472.3735656409.

The spelling of 105403919 in words is "one hundred five million, four hundred three thousand, nine hundred nineteen".