163725470 has 64 divisors (see below), whose sum is σ = 331490880. Its totient is φ = 57858048.

The previous prime is 163725469. The next prime is 163725473. The reversal of 163725470 is 74527361.

163725470 = 98² + 99² + ... + 789².

It is a self number, because there is not a number n which added to its sum of digits gives 163725470.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163725473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558644 + ... + 558936.

It is an arithmetic number, because the mean of its divisors is an integer number (5179545).

Almost surely, 2^163725470 is an apocalyptic number.

163725470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163725470 is an abundant number, since it is smaller than the sum of its proper divisors (167765410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163725470 is a wasteful number, since it uses less digits than its factorization.

163725470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 163725470 is about 12795.5253897603. The cubic root of 163725470 is about 547.0647709074.

The spelling of 163725470 in words is "one hundred sixty-three million, seven hundred twenty-five thousand, four hundred seventy".