123143461 has 16 divisors (see below), whose sum is σ = 149319936. Its totient is φ = 99138816.

The previous prime is 123143429. The next prime is 123143477. The reversal of 123143461 is 164341321.

It is not a de Polignac number, because 123143461 - 2⁵ = 123143429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89400 + ... + 90766.

It is an arithmetic number, because the mean of its divisors is an integer number (9332496).

Almost surely, 2^123143461 is an apocalyptic number.

It is an amenable number.

123143461 is a deficient number, since it is larger than the sum of its proper divisors (26176475).

123143461 is a wasteful number, since it uses less digits than its factorization.

123143461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148.

The product of its digits is 1728, while the sum is 25.

The square root of 123143461 is about 11097.0023429753. The cubic root of 123143461 is about 497.5122574693.

Adding to 123143461 its reverse (164341321), we get a palindrome (287484782).

The spelling of 123143461 in words is "one hundred twenty-three million, one hundred forty-three thousand, four hundred sixty-one".