102757493 has 2 divisors, whose sum is σ = 102757494. Its totient is φ = 102757492.

The previous prime is 102757483. The next prime is 102757507. The reversal of 102757493 is 394757201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77123524 + 25633969 = 8782^2 + 5063^2 .

It is an emirp because it is prime and its reverse (394757201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102757493 - 2⁴ = 102757477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102757423) 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, 51378746 + 51378747.

It is an arithmetic number, because the mean of its divisors is an integer number (51378747).

Almost surely, 2^102757493 is an apocalyptic number.

It is an amenable number.

102757493 is a deficient number, since it is larger than the sum of its proper divisors (1).

102757493 is an equidigital number, since it uses as much as digits as its factorization.

102757493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 102757493 is about 10136.9370620518. The cubic root of 102757493 is about 468.3866411236.

The spelling of 102757493 in words is "one hundred two million, seven hundred fifty-seven thousand, four hundred ninety-three".