42103393 has 2 divisors, whose sum is σ = 42103394. Its totient is φ = 42103392.

The previous prime is 42103387. The next prime is 42103417. The reversal of 42103393 is 39330124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25725184 + 16378209 = 5072^2 + 4047^2 .

It is a cyclic number.

It is not a de Polignac number, because 42103393 - 2⁵ = 42103361 is a prime.

It is a super-2 number, since 2×42103393² = 3545391404224898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42103093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051696 + 21051697.

It is an arithmetic number, because the mean of its divisors is an integer number (21051697).

Almost surely, 2^42103393 is an apocalyptic number.

It is an amenable number.

42103393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42103393 is an equidigital number, since it uses as much as digits as its factorization.

42103393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 42103393 is about 6488.7127382864. The cubic root of 42103393 is about 347.8876663235.

The spelling of 42103393 in words is "forty-two million, one hundred three thousand, three hundred ninety-three".