123543454 has 24 divisors (see below), whose sum is σ = 197985528. Its totient is φ = 57805440.

The previous prime is 123543421. The next prime is 123543467. The reversal of 123543454 is 454345321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121452 + ... + 122464.

It is an arithmetic number, because the mean of its divisors is an integer number (8249397).

Almost surely, 2^123543454 is an apocalyptic number.

123543454 is a deficient number, since it is larger than the sum of its proper divisors (74442074).

123543454 is a wasteful number, since it uses less digits than its factorization.

123543454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1243 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The square root of 123543454 is about 11115.0103013897. The cubic root of 123543454 is about 498.0503462484.

Adding to 123543454 its reverse (454345321), we get a palindrome (577888775).

The spelling of 123543454 in words is "one hundred twenty-three million, five hundred forty-three thousand, four hundred fifty-four".