163526641 has 4 divisors (see below), whose sum is σ = 163552752. Its totient is φ = 163500532.

The previous prime is 163526639. The next prime is 163526651. The reversal of 163526641 is 146625361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 146625361 = 1597 ⋅91813.

It is a cyclic number.

It is not a de Polignac number, because 163526641 - 2¹ = 163526639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163526597 and 163526606.

It is not an unprimeable number, because it can be changed into a prime (163526651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586 + ... + 18268.

It is an arithmetic number, because the mean of its divisors is an integer number (40888188).

Almost surely, 2^163526641 is an apocalyptic number.

It is an amenable number.

163526641 is a deficient number, since it is larger than the sum of its proper divisors (26111).

163526641 is a wasteful number, since it uses less digits than its factorization.

163526641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110.

The product of its digits is 25920, while the sum is 34.

The square root of 163526641 is about 12787.7535556485. The cubic root of 163526641 is about 546.8432285042.

The spelling of 163526641 in words is "one hundred sixty-three million, five hundred twenty-six thousand, six hundred forty-one".