248211851 has 2 divisors, whose sum is σ = 248211852. Its totient is φ = 248211850.

The previous prime is 248211809. The next prime is 248211853. The reversal of 248211851 is 158112842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248211851 - 2⁶ = 248211787 is a prime.

Together with 248211853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (248211853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124105925 + 124105926.

It is an arithmetic number, because the mean of its divisors is an integer number (124105926).

Almost surely, 2^248211851 is an apocalyptic number.

248211851 is a deficient number, since it is larger than the sum of its proper divisors (1).

248211851 is an equidigital number, since it uses as much as digits as its factorization.

248211851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 32.

The square root of 248211851 is about 15754.7405881531. The cubic root of 248211851 is about 628.4549786564.

Subtracting from 248211851 its reverse (158112842), we obtain a palindrome (90099009).

The spelling of 248211851 in words is "two hundred forty-eight million, two hundred eleven thousand, eight hundred fifty-one".