210148481 has 2 divisors, whose sum is σ = 210148482. Its totient is φ = 210148480.

The previous prime is 210148469. The next prime is 210148483. The reversal of 210148481 is 184841012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123565456 + 86583025 = 11116^2 + 9305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210148481 is a prime.

It is a super-2 number, since 2×210148481² = 88324768133214722, which contains 22 as substring.

Together with 210148483, 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 (210148483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105074240 + 105074241.

It is an arithmetic number, because the mean of its divisors is an integer number (105074241).

Almost surely, 2^210148481 is an apocalyptic number.

It is an amenable number.

210148481 is a deficient number, since it is larger than the sum of its proper divisors (1).

210148481 is an equidigital number, since it uses as much as digits as its factorization.

210148481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 210148481 is about 14496.4989221536. The cubic root of 210148481 is about 594.5322510782.

Adding to 210148481 its reverse (184841012), we get a palindrome (394989493).

The spelling of 210148481 in words is "two hundred ten million, one hundred forty-eight thousand, four hundred eighty-one".