164171425 has 12 divisors (see below), whose sum is σ = 222079536. Its totient is φ = 119397200.

The previous prime is 164171417. The next prime is 164171437. The reversal of 164171425 is 524171461.

It is not a de Polignac number, because 164171425 - 2³ = 164171417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298219 + ... + 298768.

It is an arithmetic number, because the mean of its divisors is an integer number (18506628).

Almost surely, 2^164171425 is an apocalyptic number.

It is an amenable number.

164171425 is a deficient number, since it is larger than the sum of its proper divisors (57908111).

164171425 is a wasteful number, since it uses less digits than its factorization.

164171425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597008 (or 597003 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 164171425 is about 12812.9397485511. The cubic root of 164171425 is about 547.5610184768.

The spelling of 164171425 in words is "one hundred sixty-four million, one hundred seventy-one thousand, four hundred twenty-five".