213142415 has 32 divisors (see below), whose sum is σ = 270293760. Its totient is φ = 161201664.

The previous prime is 213142411. The next prime is 213142429. The reversal of 213142415 is 514241312.

It is a cyclic number.

It is not a de Polignac number, because 213142415 - 2² = 213142411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213142411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1357517 + ... + 1357673.

It is an arithmetic number, because the mean of its divisors is an integer number (8446680).

Almost surely, 2^213142415 is an apocalyptic number.

213142415 is a deficient number, since it is larger than the sum of its proper divisors (57151345).

213142415 is a wasteful number, since it uses less digits than its factorization.

213142415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its digits is 960, while the sum is 23.

The square root of 213142415 is about 14599.3977615517. The cubic root of 213142415 is about 597.3423333574.

Adding to 213142415 its reverse (514241312), we get a palindrome (727383727).

The spelling of 213142415 in words is "two hundred thirteen million, one hundred forty-two thousand, four hundred fifteen".