164253091 has 2 divisors, whose sum is σ = 164253092. Its totient is φ = 164253090.

The previous prime is 164253049. The next prime is 164253121. The reversal of 164253091 is 190352461.

164253091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164253091 is a prime.

It is not a weakly prime, because it can be changed into another prime (164251091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82126545 + 82126546.

It is an arithmetic number, because the mean of its divisors is an integer number (82126546).

Almost surely, 2^164253091 is an apocalyptic number.

164253091 is a deficient number, since it is larger than the sum of its proper divisors (1).

164253091 is an equidigital number, since it uses as much as digits as its factorization.

164253091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 164253091 is about 12816.1262088043. The cubic root of 164253091 is about 547.6517969734.

The spelling of 164253091 in words is "one hundred sixty-four million, two hundred fifty-three thousand, ninety-one".