210243151 has 6 divisors (see below), whose sum is σ = 221891352. Its totient is φ = 199177380.

The previous prime is 210243133. The next prime is 210243157. The reversal of 210243151 is 151342012.

It is not a de Polignac number, because 210243151 - 2⁹ = 210242639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210243157) 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, 290835 + ... + 291556.

It is an arithmetic number, because the mean of its divisors is an integer number (36981892).

Almost surely, 2^210243151 is an apocalyptic number.

210243151 is a deficient number, since it is larger than the sum of its proper divisors (11648201).

210243151 is an equidigital number, since it uses as much as digits as its factorization.

210243151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582429 (or 582410 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 210243151 is about 14499.7638256628. The cubic root of 210243151 is about 594.6215148188.

Adding to 210243151 its reverse (151342012), we get a palindrome (361585163).

The spelling of 210243151 in words is "two hundred ten million, two hundred forty-three thousand, one hundred fifty-one".