103402493 has 2 divisors, whose sum is σ = 103402494. Its totient is φ = 103402492.

The previous prime is 103402447. The next prime is 103402501. The reversal of 103402493 is 394204301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86452804 + 16949689 = 9298^2 + 4117^2 .

It is a cyclic number.

It is not a de Polignac number, because 103402493 - 2¹⁰ = 103401469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103402433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701246 + 51701247.

It is an arithmetic number, because the mean of its divisors is an integer number (51701247).

Almost surely, 2^103402493 is an apocalyptic number.

It is an amenable number.

103402493 is a deficient number, since it is larger than the sum of its proper divisors (1).

103402493 is an equidigital number, since it uses as much as digits as its factorization.

103402493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 103402493 is about 10168.7016378690. The cubic root of 103402493 is about 469.3646054058.

Adding to 103402493 its reverse (394204301), we get a palindrome (497606794).

The spelling of 103402493 in words is "one hundred three million, four hundred two thousand, four hundred ninety-three".