248249087 has 4 divisors (see below), whose sum is σ = 248395056. Its totient is φ = 248103120.

The previous prime is 248249081. The next prime is 248249101. The reversal of 248249087 is 780942842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780942842 = 2 ⋅390471421.

It is a cyclic number.

It is not a de Polignac number, because 248249087 - 2¹⁴ = 248232703 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 (248249081) 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, 70403 + ... + 73844.

It is an arithmetic number, because the mean of its divisors is an integer number (62098764).

Almost surely, 2^248249087 is an apocalyptic number.

248249087 is a deficient number, since it is larger than the sum of its proper divisors (145969).

248249087 is a wasteful number, since it uses less digits than its factorization.

248249087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145968.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 248249087 is about 15755.9222833828. The cubic root of 248249087 is about 628.4864033976.

The spelling of 248249087 in words is "two hundred forty-eight million, two hundred forty-nine thousand, eighty-seven".