212045415 has 16 divisors (see below), whose sum is σ = 357129600. Its totient is φ = 107138592.

The previous prime is 212045387. The next prime is 212045429. The reversal of 212045415 is 514540212.

It is not a de Polignac number, because 212045415 - 2⁸ = 212045159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371725 + ... + 372294.

It is an arithmetic number, because the mean of its divisors is an integer number (22320600).

Almost surely, 2^212045415 is an apocalyptic number.

212045415 is a deficient number, since it is larger than the sum of its proper divisors (145084185).

212045415 is a wasteful number, since it uses less digits than its factorization.

212045415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744046.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 212045415 is about 14561.7792525501. The cubic root of 212045415 is about 596.3157709532.

Adding to 212045415 its reverse (514540212), we get a palindrome (726585627).

The spelling of 212045415 in words is "two hundred twelve million, forty-five thousand, four hundred fifteen".