200645534 has 4 divisors (see below), whose sum is σ = 300968304. Its totient is φ = 100322766.

The previous prime is 200645477. The next prime is 200645551. The reversal of 200645534 is 435546002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435546002 = 2 ⋅217773001.

It is a junction number, because it is equal to n+sod(n) for n = 200645497 and 200645506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50161382 + ... + 50161385.

It is an arithmetic number, because the mean of its divisors is an integer number (75242076).

Almost surely, 2^200645534 is an apocalyptic number.

200645534 is a deficient number, since it is larger than the sum of its proper divisors (100322770).

200645534 is a wasteful number, since it uses less digits than its factorization.

200645534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100322769.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 200645534 is about 14164.9403104990. The cubic root of 200645534 is about 585.4320562096.

The spelling of 200645534 in words is "two hundred million, six hundred forty-five thousand, five hundred thirty-four".