211487145 has 8 divisors (see below), whose sum is σ = 338379456. Its totient is φ = 112793136.

The previous prime is 211487117. The next prime is 211487147. The reversal of 211487145 is 541784112.

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

It is not a de Polignac number, because 211487145 - 2⁵ = 211487113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211487147) 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 in 7 ways as a sum of consecutive naturals, for example, 7049557 + ... + 7049586.

It is an arithmetic number, because the mean of its divisors is an integer number (42297432).

Almost surely, 2^211487145 is an apocalyptic number.

It is an amenable number.

211487145 is a deficient number, since it is larger than the sum of its proper divisors (126892311).

211487145 is a wasteful number, since it uses less digits than its factorization.

211487145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14099151.

The product of its digits is 8960, while the sum is 33.

The square root of 211487145 is about 14542.5976015291. The cubic root of 211487145 is about 595.7919872636.

The spelling of 211487145 in words is "two hundred eleven million, four hundred eighty-seven thousand, one hundred forty-five".