164171530 has 16 divisors (see below), whose sum is σ = 298557000. Its totient is φ = 64991232.

The previous prime is 164171519. The next prime is 164171531. The reversal of 164171530 is 35171461.

It can be written as a sum of positive squares in 4 ways, for example, as 154678969 + 9492561 = 12437^2 + 3081^2 .

It is not an unprimeable number, because it can be changed into a prime (164171531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83655 + ... + 85594.

Almost surely, 2^164171530 is an apocalyptic number.

164171530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164171530 is a deficient number, since it is larger than the sum of its proper divisors (134385470).

164171530 is a wasteful number, since it uses less digits than its factorization.

164171530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169353.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 164171530 is about 12812.9438459708. The cubic root of 164171530 is about 547.5611352123.

The spelling of 164171530 in words is "one hundred sixty-four million, one hundred seventy-one thousand, five hundred thirty".