213305154 has 16 divisors (see below), whose sum is σ = 451705248. Its totient is φ = 66919232.

The previous prime is 213305107. The next prime is 213305173. The reversal of 213305154 is 451503312.

213305154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213305154³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1045512 + ... + 1045715.

It is an arithmetic number, because the mean of its divisors is an integer number (28231578).

Almost surely, 2^213305154 is an apocalyptic number.

213305154 is an abundant number, since it is smaller than the sum of its proper divisors (238400094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213305154 is a wasteful number, since it uses less digits than its factorization.

213305154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091249.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 213305154 is about 14604.9701814143. The cubic root of 213305154 is about 597.4943227579.

Adding to 213305154 its reverse (451503312), we get a palindrome (664808466).

The spelling of 213305154 in words is "two hundred thirteen million, three hundred five thousand, one hundred fifty-four".