211046145 has 32 divisors (see below), whose sum is σ = 344736000. Its totient is φ = 110229504.

The previous prime is 211046141. The next prime is 211046149. The reversal of 211046145 is 541640112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211046141) and next prime (211046149).

It is not a de Polignac number, because 211046145 - 2² = 211046141 is a prime.

It is a super-2 number, since 2×211046145² = 89080950638722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211046141) 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 in 31 ways as a sum of consecutive naturals, for example, 150156 + ... + 151554.

It is an arithmetic number, because the mean of its divisors is an integer number (10773000).

Almost surely, 2^211046145 is an apocalyptic number.

It is an amenable number.

211046145 is a deficient number, since it is larger than the sum of its proper divisors (133689855).

211046145 is a wasteful number, since it uses less digits than its factorization.

211046145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 211046145 is about 14527.4273359050. The cubic root of 211046145 is about 595.3775773540.

Adding to 211046145 its reverse (541640112), we get a palindrome (752686257).

The spelling of 211046145 in words is "two hundred eleven million, forty-six thousand, one hundred forty-five".