212677513 has 4 divisors (see below), whose sum is σ = 213248068. Its totient is φ = 212106960.

The previous prime is 212677511. The next prime is 212677541. The reversal of 212677513 is 315776212.

212677513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53993104 + 158684409 = 7348^2 + 12597^2 .

It is a cyclic number.

It is not a de Polignac number, because 212677513 - 2¹ = 212677511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212677511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284718 + ... + 285463.

It is an arithmetic number, because the mean of its divisors is an integer number (53312017).

Almost surely, 2^212677513 is an apocalyptic number.

It is an amenable number.

212677513 is a deficient number, since it is larger than the sum of its proper divisors (570555).

212677513 is an equidigital number, since it uses as much as digits as its factorization.

212677513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570554.

The product of its digits is 17640, while the sum is 34.

The square root of 212677513 is about 14583.4671117674. The cubic root of 212677513 is about 596.9077134670.

The spelling of 212677513 in words is "two hundred twelve million, six hundred seventy-seven thousand, five hundred thirteen".