164248537 has 4 divisors (see below), whose sum is σ = 167347620. Its totient is φ = 161149456.

The previous prime is 164248517. The next prime is 164248549. The reversal of 164248537 is 735842461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 133379401 + 30869136 = 11549^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 164248537 - 2²³ = 155859929 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164248537.

It is not an unprimeable number, because it can be changed into a prime (164248517) 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, 1549462 + ... + 1549567.

It is an arithmetic number, because the mean of its divisors is an integer number (41836905).

Almost surely, 2^164248537 is an apocalyptic number.

It is an amenable number.

164248537 is a deficient number, since it is larger than the sum of its proper divisors (3099083).

164248537 is an equidigital number, since it uses as much as digits as its factorization.

164248537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099082.

The product of its digits is 161280, while the sum is 40.

The square root of 164248537 is about 12815.9485407831. The cubic root of 164248537 is about 547.6467356189.

The spelling of 164248537 in words is "one hundred sixty-four million, two hundred forty-eight thousand, five hundred thirty-seven".