72750269 has 2 divisors, whose sum is σ = 72750270. Its totient is φ = 72750268.

The previous prime is 72750203. The next prime is 72750283. The reversal of 72750269 is 96205727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55428025 + 17322244 = 7445^2 + 4162^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72750269 is a prime.

It is a super-2 number, since 2×72750269² = 10585203279144722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72750169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36375134 + 36375135.

It is an arithmetic number, because the mean of its divisors is an integer number (36375135).

Almost surely, 2^72750269 is an apocalyptic number.

It is an amenable number.

72750269 is a deficient number, since it is larger than the sum of its proper divisors (1).

72750269 is an equidigital number, since it uses as much as digits as its factorization.

72750269 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 72750269 is about 8529.3768236607. The cubic root of 72750269 is about 417.4567949841.

The spelling of 72750269 in words is "seventy-two million, seven hundred fifty thousand, two hundred sixty-nine".