123454455 has 16 divisors (see below), whose sum is σ = 206115840. Its totient is φ = 62979488.

The previous prime is 123454453. The next prime is 123454469. The reversal of 123454455 is 554454321.

It is a cyclic number.

It is not a de Polignac number, because 123454455 - 2¹ = 123454453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123454453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178575 + ... + 179264.

It is an arithmetic number, because the mean of its divisors is an integer number (12882240).

Almost surely, 2^123454455 is an apocalyptic number.

123454455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123454455 is a deficient number, since it is larger than the sum of its proper divisors (82661385).

123454455 is a wasteful number, since it uses less digits than its factorization.

123454455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357870.

The product of its digits is 48000, while the sum is 33.

The square root of 123454455 is about 11111.0060300587. The cubic root of 123454455 is about 497.9307213188.

The spelling of 123454455 in words is "one hundred twenty-three million, four hundred fifty-four thousand, four hundred fifty-five".