163142125 has 8 divisors (see below), whose sum is σ = 203601528. Its totient is φ = 130513600.

The previous prime is 163142099. The next prime is 163142191. The reversal of 163142125 is 521241361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 885481 + 162256644 = 941^2 + 12738^2 .

It is not a de Polignac number, because 163142125 - 2¹¹ = 163140077 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163142125.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 652444 + ... + 652693.

It is an arithmetic number, because the mean of its divisors is an integer number (25450191).

Almost surely, 2^163142125 is an apocalyptic number.

It is an amenable number.

163142125 is a deficient number, since it is larger than the sum of its proper divisors (40459403).

163142125 is an equidigital number, since it uses as much as digits as its factorization.

163142125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305152 (or 1305142 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 163142125 is about 12772.7101666013. The cubic root of 163142125 is about 546.4142770000.

Adding to 163142125 its reverse (521241361), we get a palindrome (684383486).

The spelling of 163142125 in words is "one hundred sixty-three million, one hundred forty-two thousand, one hundred twenty-five".