213454004 has 6 divisors (see below), whose sum is σ = 373544514. Its totient is φ = 106727000.

The previous prime is 213454001. The next prime is 213454013. The reversal of 213454004 is 400454312.

It can be written as a sum of positive squares in only one way, i.e., 129914404 + 83539600 = 11398^2 + 9140^2 .

It is a super-2 number, since 2×213454004² = 91125223647264032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213454001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26681747 + ... + 26681754.

It is an arithmetic number, because the mean of its divisors is an integer number (62257419).

Almost surely, 2^213454004 is an apocalyptic number.

It is an amenable number.

213454004 is a deficient number, since it is larger than the sum of its proper divisors (160090510).

213454004 is a wasteful number, since it uses less digits than its factorization.

213454004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53363505 (or 53363503 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 213454004 is about 14610.0651607034. The cubic root of 213454004 is about 597.6332729094.

The spelling of 213454004 in words is "two hundred thirteen million, four hundred fifty-four thousand, four".