248352921 has 6 divisors (see below), whose sum is σ = 358732010. Its totient is φ = 165568608.

The previous prime is 248352913. The next prime is 248352931. The reversal of 248352921 is 129253842.

It is a happy number.

248352921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 199911321 + 48441600 = 14139^2 + 6960^2 .

It is not a de Polignac number, because 248352921 - 2³ = 248352913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248352901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13797376 + ... + 13797393.

Almost surely, 2^248352921 is an apocalyptic number.

It is an amenable number.

248352921 is a deficient number, since it is larger than the sum of its proper divisors (110379089).

248352921 is a wasteful number, since it uses less digits than its factorization.

248352921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27594775 (or 27594772 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 248352921 is about 15759.2170173521. The cubic root of 248352921 is about 628.5740158861.

The spelling of 248352921 in words is "two hundred forty-eight million, three hundred fifty-two thousand, nine hundred twenty-one".