164027775 has 12 divisors (see below), whose sum is σ = 271192712. Its totient is φ = 87481440.

The previous prime is 164027767. The next prime is 164027777. The reversal of 164027775 is 577720461.

It is not a de Polignac number, because 164027775 - 2³ = 164027767 is a prime.

It is a super-2 number, since 2×164027775² = 53810221942901250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164027777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1093444 + ... + 1093593.

Almost surely, 2^164027775 is an apocalyptic number.

164027775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164027775 is a deficient number, since it is larger than the sum of its proper divisors (107164937).

164027775 is a wasteful number, since it uses less digits than its factorization.

164027775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187050 (or 2187045 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 164027775 is about 12807.3328605139. The cubic root of 164027775 is about 547.4012665729.

The spelling of 164027775 in words is "one hundred sixty-four million, twenty-seven thousand, seven hundred seventy-five".