123451245 has 24 divisors (see below), whose sum is σ = 214250400. Its totient is φ = 65758176.

The previous prime is 123451219. The next prime is 123451259. The reversal of 123451245 is 542154321.

It is not a de Polignac number, because 123451245 - 2⁵ = 123451213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 55566 + ... + 57744.

It is an arithmetic number, because the mean of its divisors is an integer number (8927100).

Almost surely, 2^123451245 is an apocalyptic number.

123451245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123451245 is a deficient number, since it is larger than the sum of its proper divisors (90799155).

123451245 is a wasteful number, since it uses less digits than its factorization.

123451245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449 (or 3446 counting only the distinct ones).

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

The square root of 123451245 is about 11110.8615777535. The cubic root of 123451245 is about 497.9264056342.

The spelling of 123451245 in words is "one hundred twenty-three million, four hundred fifty-one thousand, two hundred forty-five".