10202749 has 2 divisors, whose sum is σ = 10202750. Its totient is φ = 10202748.

The previous prime is 10202747. The next prime is 10202761. The reversal of 10202749 is 94720201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5207524 + 4995225 = 2282^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 10202749 - 2¹ = 10202747 is a prime.

Together with 10202747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10202747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101374 + 5101375.

It is an arithmetic number, because the mean of its divisors is an integer number (5101375).

Almost surely, 2^10202749 is an apocalyptic number.

It is an amenable number.

10202749 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202749 is an equidigital number, since it uses as much as digits as its factorization.

10202749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 10202749 is about 3194.1742281848. The cubic root of 10202749 is about 216.8897696647.

The spelling of 10202749 in words is "ten million, two hundred two thousand, seven hundred forty-nine".