213415545 has 16 divisors (see below), whose sum is σ = 390245760. Its totient is φ = 97561344.

The previous prime is 213415541. The next prime is 213415547. The reversal of 213415545 is 545514312.

It is not a de Polignac number, because 213415545 - 2² = 213415541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213415541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016160 + ... + 1016369.

It is an arithmetic number, because the mean of its divisors is an integer number (24390360).

Almost surely, 2^213415545 is an apocalyptic number.

It is an amenable number.

213415545 is a deficient number, since it is larger than the sum of its proper divisors (176830215).

213415545 is a wasteful number, since it uses less digits than its factorization.

213415545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032544.

The product of its digits is 12000, while the sum is 30.

The square root of 213415545 is about 14608.7489197398. The cubic root of 213415545 is about 597.5973779654.

Adding to 213415545 its reverse (545514312), we get a palindrome (758929857).

The spelling of 213415545 in words is "two hundred thirteen million, four hundred fifteen thousand, five hundred forty-five".