164202501 has 4 divisors (see below), whose sum is σ = 218936672. Its totient is φ = 109468332.

The previous prime is 164202421. The next prime is 164202523. The reversal of 164202501 is 105202461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 164202501 - 2¹¹ = 164200453 is a prime.

It is a super-2 number, since 2×164202501² = 53924922669310002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164202001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27367081 + ... + 27367086.

It is an arithmetic number, because the mean of its divisors is an integer number (54734168).

Almost surely, 2^164202501 is an apocalyptic number.

It is an amenable number.

164202501 is a deficient number, since it is larger than the sum of its proper divisors (54734171).

164202501 is an equidigital number, since it uses as much as digits as its factorization.

164202501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54734170.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 164202501 is about 12814.1523714993. The cubic root of 164202501 is about 547.5955655621.

Adding to 164202501 its reverse (105202461), we get a palindrome (269404962).

The spelling of 164202501 in words is "one hundred sixty-four million, two hundred two thousand, five hundred one".