18750757 has 2 divisors, whose sum is σ = 18750758. Its totient is φ = 18750756.

The previous prime is 18750713. The next prime is 18750763. The reversal of 18750757 is 75705781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 36481 = 4326^2 + 191^2 .

It is an emirp because it is prime and its reverse (75705781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18750757 - 2¹⁹ = 18226469 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18750857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9375378 + 9375379.

It is an arithmetic number, because the mean of its divisors is an integer number (9375379).

Almost surely, 2^18750757 is an apocalyptic number.

It is an amenable number.

18750757 is a deficient number, since it is larger than the sum of its proper divisors (1).

18750757 is an equidigital number, since it uses as much as digits as its factorization.

18750757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 18750757 is about 4330.2144288707. The cubic root of 18750757 is about 265.6682175033.

The spelling of 18750757 in words is "eighteen million, seven hundred fifty thousand, seven hundred fifty-seven".