210545012 has 6 divisors (see below), whose sum is σ = 368453778. Its totient is φ = 105272504.

The previous prime is 210545011. The next prime is 210545029.

210545012 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 116726416 + 93818596 = 10804^2 + 9686^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210545011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26318123 + ... + 26318130.

It is an arithmetic number, because the mean of its divisors is an integer number (61408963).

Almost surely, 2^210545012 is an apocalyptic number.

It is an amenable number.

210545012 is a deficient number, since it is larger than the sum of its proper divisors (157908766).

210545012 is a wasteful number, since it uses less digits than its factorization.

210545012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52636257 (or 52636255 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 210545012 is about 14510.1692615903. The cubic root of 210545012 is about 594.9059588209.

The spelling of 210545012 in words is "two hundred ten million, five hundred forty-five thousand, twelve".