164912477 has 2 divisors, whose sum is σ = 164912478. Its totient is φ = 164912476.

The previous prime is 164912459. The next prime is 164912483. The reversal of 164912477 is 774219461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91278916 + 73633561 = 9554^2 + 8581^2 .

It is a cyclic number.

It is not a de Polignac number, because 164912477 - 2¹⁴ = 164896093 is a prime.

It is a super-2 number, since 2×164912477² = 54392250140551058, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164912417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82456238 + 82456239.

It is an arithmetic number, because the mean of its divisors is an integer number (82456239).

Almost surely, 2^164912477 is an apocalyptic number.

It is an amenable number.

164912477 is a deficient number, since it is larger than the sum of its proper divisors (1).

164912477 is an equidigital number, since it uses as much as digits as its factorization.

164912477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 164912477 is about 12841.8252986092. The cubic root of 164912477 is about 548.3836589548.

The spelling of 164912477 in words is "one hundred sixty-four million, nine hundred twelve thousand, four hundred seventy-seven".