248073109 has 4 divisors (see below), whose sum is σ = 249102700. Its totient is φ = 247043520.

The previous prime is 248073107. The next prime is 248073121. The reversal of 248073109 is 901370842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901370842 = 2 ⋅450685421.

It can be written as a sum of positive squares in 2 ways, for example, as 187964100 + 60109009 = 13710^2 + 7753^2 .

It is a cyclic number.

It is not a de Polignac number, because 248073109 - 2¹ = 248073107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248073103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514434 + ... + 514915.

It is an arithmetic number, because the mean of its divisors is an integer number (62275675).

Almost surely, 2^248073109 is an apocalyptic number.

It is an amenable number.

248073109 is a deficient number, since it is larger than the sum of its proper divisors (1029591).

248073109 is a wasteful number, since it uses less digits than its factorization.

248073109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029590.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 248073109 is about 15750.3367900499. The cubic root of 248073109 is about 628.3378618315.

The spelling of 248073109 in words is "two hundred forty-eight million, seventy-three thousand, one hundred nine".