164521435 has 8 divisors (see below), whose sum is σ = 212612400. Its totient is φ = 121492704.

The previous prime is 164521417. The next prime is 164521447. The reversal of 164521435 is 534125461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164521435 - 2⁵ = 164521403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164521397 and 164521406.

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, 1265485 + ... + 1265614.

It is an arithmetic number, because the mean of its divisors is an integer number (26576550).

Almost surely, 2^164521435 is an apocalyptic number.

164521435 is a deficient number, since it is larger than the sum of its proper divisors (48090965).

164521435 is a wasteful number, since it uses less digits than its factorization.

164521435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531117.

The product of its digits is 14400, while the sum is 31.

The square root of 164521435 is about 12826.5909344611. The cubic root of 164521435 is about 547.9498717622.

Adding to 164521435 its reverse (534125461), we get a palindrome (698646896).

The spelling of 164521435 in words is "one hundred sixty-four million, five hundred twenty-one thousand, four hundred thirty-five".