163401123 has 8 divisors (see below), whose sum is σ = 218131200. Its totient is φ = 108802568.

The previous prime is 163401107. The next prime is 163401163. The reversal of 163401123 is 321104361.

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 163401123 - 2⁴ = 163401107 is a prime.

It is a super-2 number, since 2×163401123² = 53399853995322258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163401123.

It is not an unprimeable number, because it can be changed into a prime (163401163) 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, 29943 + ... + 34976.

It is an arithmetic number, because the mean of its divisors is an integer number (27266400).

Almost surely, 2^163401123 is an apocalyptic number.

163401123 is a deficient number, since it is larger than the sum of its proper divisors (54730077).

163401123 is an equidigital number, since it uses as much as digits as its factorization.

163401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65761.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 163401123 is about 12782.8448711545. The cubic root of 163401123 is about 546.7032793659.

Adding to 163401123 its reverse (321104361), we get a palindrome (484505484).

The spelling of 163401123 in words is "one hundred sixty-three million, four hundred one thousand, one hundred twenty-three".