163825131 has 8 divisors (see below), whose sum is σ = 220596624. Its totient is φ = 108135200.

The previous prime is 163825121. The next prime is 163825153. The reversal of 163825131 is 131528361.

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

It is a cyclic number.

It is not a de Polignac number, because 163825131 - 2⁵ = 163825099 is a prime.

It is a super-2 number, since 2×163825131² = 53677347094334322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163825121) 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, 270036 + ... + 270641.

It is an arithmetic number, because the mean of its divisors is an integer number (27574578).

Almost surely, 2^163825131 is an apocalyptic number.

163825131 is a deficient number, since it is larger than the sum of its proper divisors (56771493).

163825131 is a wasteful number, since it uses less digits than its factorization.

163825131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540781.

The product of its digits is 4320, while the sum is 30.

The square root of 163825131 is about 12799.4191665091. The cubic root of 163825131 is about 547.1757492897.

The spelling of 163825131 in words is "one hundred sixty-three million, eight hundred twenty-five thousand, one hundred thirty-one".