163400041 has 4 divisors (see below), whose sum is σ = 186742912. Its totient is φ = 140057172.

The previous prime is 163400011. The next prime is 163400051. The reversal of 163400041 is 140004361.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 140004361 = 7 ⋅20000623.

It is a cyclic number.

It is not a de Polignac number, because 163400041 - 2⁷ = 163399913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163399991 and 163400018.

It is not an unprimeable number, because it can be changed into a prime (163400011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11671425 + ... + 11671438.

It is an arithmetic number, because the mean of its divisors is an integer number (46685728).

Almost surely, 2^163400041 is an apocalyptic number.

It is an amenable number.

163400041 is a deficient number, since it is larger than the sum of its proper divisors (23342871).

163400041 is an equidigital number, since it uses as much as digits as its factorization.

163400041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342870.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 163400041 is about 12782.8025487371. The cubic root of 163400041 is about 546.7020726539.

The spelling of 163400041 in words is "one hundred sixty-three million, four hundred thousand, forty-one".