164785037 has 2 divisors, whose sum is σ = 164785038. Its totient is φ = 164785036.

The previous prime is 164785021. The next prime is 164785039. The reversal of 164785037 is 730587461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119006281 + 45778756 = 10909^2 + 6766^2 .

It is a cyclic number.

It is not a de Polignac number, because 164785037 - 2⁴ = 164785021 is a prime.

Together with 164785039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 164784985 and 164785003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164785039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82392518 + 82392519.

It is an arithmetic number, because the mean of its divisors is an integer number (82392519).

Almost surely, 2^164785037 is an apocalyptic number.

It is an amenable number.

164785037 is a deficient number, since it is larger than the sum of its proper divisors (1).

164785037 is an equidigital number, since it uses as much as digits as its factorization.

164785037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 164785037 is about 12836.8624281792. The cubic root of 164785037 is about 548.2423637568.

The spelling of 164785037 in words is "one hundred sixty-four million, seven hundred eighty-five thousand, thirty-seven".