212671515 has 24 divisors (see below), whose sum is σ = 395830800. Its totient is φ = 97220928.

The previous prime is 212671477. The next prime is 212671517. The reversal of 212671515 is 515176212.

212671515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212671515 - 2⁶ = 212671451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212671517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143940 + ... + 145409.

It is an arithmetic number, because the mean of its divisors is an integer number (16492950).

Almost surely, 2^212671515 is an apocalyptic number.

212671515 is a deficient number, since it is larger than the sum of its proper divisors (183159285).

212671515 is a wasteful number, since it uses less digits than its factorization.

212671515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289371 (or 289364 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The square root of 212671515 is about 14583.2614664896. The cubic root of 212671515 is about 596.9021020195.

The spelling of 212671515 in words is "two hundred twelve million, six hundred seventy-one thousand, five hundred fifteen".