123740163 has 16 divisors (see below), whose sum is σ = 184643200. Its totient is φ = 81897480.

The previous prime is 123740159. The next prime is 123740191. The reversal of 123740163 is 361047321.

It is not a de Polignac number, because 123740163 - 2² = 123740159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123740063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12733 + ... + 20238.

It is an arithmetic number, because the mean of its divisors is an integer number (11540200).

Almost surely, 2^123740163 is an apocalyptic number.

123740163 is a deficient number, since it is larger than the sum of its proper divisors (60903037).

123740163 is a wasteful number, since it uses less digits than its factorization.

123740163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33119 (or 33113 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 123740163 is about 11123.8555815868. The cubic root of 123740163 is about 498.3145421812.

Adding to 123740163 its reverse (361047321), we get a palindrome (484787484).

The spelling of 123740163 in words is "one hundred twenty-three million, seven hundred forty thousand, one hundred sixty-three".