213168054 has 16 divisors (see below), whose sum is σ = 465094080. Its totient is φ = 64596360.

The previous prime is 213168041. The next prime is 213168101. The reversal of 213168054 is 450861312.

It is a super-2 number, since 2×213168054² = 90881238492293832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614844 + ... + 1614975.

It is an arithmetic number, because the mean of its divisors is an integer number (29068380).

Almost surely, 2^213168054 is an apocalyptic number.

213168054 is an abundant number, since it is smaller than the sum of its proper divisors (251926026).

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

213168054 is a wasteful number, since it uses less digits than its factorization.

213168054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229835.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 213168054 is about 14600.2758193125. The cubic root of 213168054 is about 597.3662839259.

The spelling of 213168054 in words is "two hundred thirteen million, one hundred sixty-eight thousand, fifty-four".