213077534 has 4 divisors (see below), whose sum is σ = 319616304. Its totient is φ = 106538766.

The previous prime is 213077531. The next prime is 213077537. The reversal of 213077534 is 435770312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (213077531) and next prime (213077537).

It is a self number, because there is not a number n which added to its sum of digits gives 213077534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213077531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53269382 + ... + 53269385.

It is an arithmetic number, because the mean of its divisors is an integer number (79904076).

Almost surely, 2^213077534 is an apocalyptic number.

213077534 is a deficient number, since it is larger than the sum of its proper divisors (106538770).

213077534 is a wasteful number, since it uses less digits than its factorization.

213077534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106538769.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 213077534 is about 14597.1755487149. The cubic root of 213077534 is about 597.2817164516.

The spelling of 213077534 in words is "two hundred thirteen million, seventy-seven thousand, five hundred thirty-four".