123152454 has 32 divisors (see below), whose sum is σ = 289772640. Its totient is φ = 38635776.

The previous prime is 123152453. The next prime is 123152459. The reversal of 123152454 is 454251321.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123152453) 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, 66159 + ... + 67994.

It is an arithmetic number, because the mean of its divisors is an integer number (9055395).

Almost surely, 2^123152454 is an apocalyptic number.

123152454 is an abundant number, since it is smaller than the sum of its proper divisors (166620186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123152454 is a wasteful number, since it uses less digits than its factorization.

123152454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134181 (or 134175 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 123152454 is about 11097.4075350958. The cubic root of 123152454 is about 497.5243680563.

The spelling of 123152454 in words is "one hundred twenty-three million, one hundred fifty-two thousand, four hundred fifty-four".