123255045 has 24 divisors (see below), whose sum is σ = 222932736. Its totient is φ = 62877408.

The previous prime is 123255043. The next prime is 123255079. The reversal of 123255045 is 540552321.

It is a happy number.

It is not a de Polignac number, because 123255045 - 2¹ = 123255043 is a prime.

It is a super-2 number, since 2×123255045² = 30383612235904050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123255043) 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 23 ways as a sum of consecutive naturals, for example, 58509 + ... + 60578.

It is an arithmetic number, because the mean of its divisors is an integer number (9288864).

Almost surely, 2^123255045 is an apocalyptic number.

123255045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123255045 is a deficient number, since it is larger than the sum of its proper divisors (99677691).

123255045 is a wasteful number, since it uses less digits than its factorization.

123255045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119121 (or 119118 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 123255045 is about 11102.0288686348. The cubic root of 123255045 is about 497.6624823857.

The spelling of 123255045 in words is "one hundred twenty-three million, two hundred fifty-five thousand, forty-five".