210145562147 has 2 divisors, whose sum is σ = 210145562148. Its totient is φ = 210145562146.

The previous prime is 210145562113. The next prime is 210145562161. The reversal of 210145562147 is 741265541012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210145562147 - 2⁸ = 210145561891 is a prime.

It is a super-2 number, since 2×210145562147² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210145562147.

It is not a weakly prime, because it can be changed into another prime (210145562177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105072781073 + 105072781074.

It is an arithmetic number, because the mean of its divisors is an integer number (105072781074).

Almost surely, 2^210145562147 is an apocalyptic number.

210145562147 is a deficient number, since it is larger than the sum of its proper divisors (1).

210145562147 is an equidigital number, since it uses as much as digits as its factorization.

210145562147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 210145562147 in words is "two hundred ten billion, one hundred forty-five million, five hundred sixty-two thousand, one hundred forty-seven".