212527145 has 16 divisors (see below), whose sum is σ = 261817920. Its totient is φ = 165553344.

The previous prime is 212527127. The next prime is 212527157. The reversal of 212527145 is 541725212.

212527145 = 1356² + 1357² + ... + 1462².

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212527145 - 2⁸ = 212526889 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28199 + ... + 34931.

It is an arithmetic number, because the mean of its divisors is an integer number (16363620).

Almost surely, 2^212527145 is an apocalyptic number.

It is an amenable number.

212527145 is a deficient number, since it is larger than the sum of its proper divisors (49290775).

212527145 is a wasteful number, since it uses less digits than its factorization.

212527145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6904.

The product of its digits is 5600, while the sum is 29.

The square root of 212527145 is about 14578.3107732000. The cubic root of 212527145 is about 596.7670043730.

The spelling of 212527145 in words is "two hundred twelve million, five hundred twenty-seven thousand, one hundred forty-five".