10720249 has 2 divisors, whose sum is σ = 10720250. Its totient is φ = 10720248.

The previous prime is 10720247. The next prime is 10720253. The reversal of 10720249 is 94202701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10240000 + 480249 = 3200^2 + 693^2 .

It is a cyclic number.

It is not a de Polignac number, because 10720249 - 2¹ = 10720247 is a prime.

It is a super-2 number, since 2×10720249² = 229847477244002, which contains 22 as substring.

Together with 10720247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10720247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5360124 + 5360125.

It is an arithmetic number, because the mean of its divisors is an integer number (5360125).

Almost surely, 2^10720249 is an apocalyptic number.

It is an amenable number.

10720249 is a deficient number, since it is larger than the sum of its proper divisors (1).

10720249 is an equidigital number, since it uses as much as digits as its factorization.

10720249 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 10720249 is about 3274.1791337677. The cubic root of 10720249 is about 220.4964614656.

The spelling of 10720249 in words is "ten million, seven hundred twenty thousand, two hundred forty-nine".