210451145 has 8 divisors (see below), whose sum is σ = 254993856. Its totient is φ = 166725936.

The previous prime is 210451141. The next prime is 210451147. The reversal of 210451145 is 541154012.

210451145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210451145 - 2² = 210451141 is a prime.

It is a super-2 number, since 2×210451145² = 88579368863622050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210451145.

It is not an unprimeable number, because it can be changed into a prime (210451141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203807 + ... + 204836.

It is an arithmetic number, because the mean of its divisors is an integer number (31874232).

Almost surely, 2^210451145 is an apocalyptic number.

It is an amenable number.

210451145 is a deficient number, since it is larger than the sum of its proper divisors (44542711).

210451145 is a wasteful number, since it uses less digits than its factorization.

210451145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408751.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 210451145 is about 14506.9343763595. The cubic root of 210451145 is about 594.8175369710.

The spelling of 210451145 in words is "two hundred ten million, four hundred fifty-one thousand, one hundred forty-five".