103493749 has 2 divisors, whose sum is σ = 103493750. Its totient is φ = 103493748.

The previous prime is 103493743. The next prime is 103493771. The reversal of 103493749 is 947394301.

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., 72335025 + 31158724 = 8505^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 103493749 - 2²³ = 95105141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103493743) 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, 51746874 + 51746875.

It is an arithmetic number, because the mean of its divisors is an integer number (51746875).

Almost surely, 2^103493749 is an apocalyptic number.

It is an amenable number.

103493749 is a deficient number, since it is larger than the sum of its proper divisors (1).

103493749 is an equidigital number, since it uses as much as digits as its factorization.

103493749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 103493749 is about 10173.1877501597. The cubic root of 103493749 is about 469.5026412212.

The spelling of 103493749 in words is "one hundred three million, four hundred ninety-three thousand, seven hundred forty-nine".