10239949 has 2 divisors, whose sum is σ = 10239950. Its totient is φ = 10239948.

The previous prime is 10239923. The next prime is 10239953. The reversal of 10239949 is 94993201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9259849 + 980100 = 3043^2 + 990^2 .

It is an emirp because it is prime and its reverse (94993201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10239949 - 2¹¹ = 10237901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10239989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5119974 + 5119975.

It is an arithmetic number, because the mean of its divisors is an integer number (5119975).

Almost surely, 2^10239949 is an apocalyptic number.

It is an amenable number.

10239949 is a deficient number, since it is larger than the sum of its proper divisors (1).

10239949 is an equidigital number, since it uses as much as digits as its factorization.

10239949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 10239949 is about 3199.9920312401. The cubic root of 10239949 is about 217.1530488184.

The spelling of 10239949 in words is "ten million, two hundred thirty-nine thousand, nine hundred forty-nine".