164874977 has 2 divisors, whose sum is σ = 164874978. Its totient is φ = 164874976.

The previous prime is 164874949. The next prime is 164874991. The reversal of 164874977 is 779478461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153859216 + 11015761 = 12404^2 + 3319^2 .

It is an emirp because it is prime and its reverse (779478461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164874977 - 2¹⁴ = 164858593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (164874917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82437488 + 82437489.

It is an arithmetic number, because the mean of its divisors is an integer number (82437489).

Almost surely, 2^164874977 is an apocalyptic number.

It is an amenable number.

164874977 is a deficient number, since it is larger than the sum of its proper divisors (1).

164874977 is an equidigital number, since it uses as much as digits as its factorization.

164874977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 53.

The square root of 164874977 is about 12840.3651427831. The cubic root of 164874977 is about 548.3420895387.

The spelling of 164874977 in words is "one hundred sixty-four million, eight hundred seventy-four thousand, nine hundred seventy-seven".