163457530 has 8 divisors (see below), whose sum is σ = 294223572. Its totient is φ = 65383008.

The previous prime is 163457521. The next prime is 163457531. The reversal of 163457530 is 35754361.

It can be written as a sum of positive squares in 2 ways, for example, as 163405089 + 52441 = 12783^2 + 229^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×163457530² = 53436728227401800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163457531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8172867 + ... + 8172886.

Almost surely, 2^163457530 is an apocalyptic number.

163457530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163457530 is a deficient number, since it is larger than the sum of its proper divisors (130766042).

163457530 is a wasteful number, since it uses less digits than its factorization.

163457530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16345760.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 163457530 is about 12785.0510362689. The cubic root of 163457530 is about 546.7661804923.

The spelling of 163457530 in words is "one hundred sixty-three million, four hundred fifty-seven thousand, five hundred thirty".