123025605 has 24 divisors (see below), whose sum is σ = 199775136. Its totient is φ = 64649760.

The previous prime is 123025547. The next prime is 123025607. The reversal of 123025605 is 506520321.

It is not a de Polignac number, because 123025605 - 2⁶ = 123025541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123025607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74802 + ... + 76428.

It is an arithmetic number, because the mean of its divisors is an integer number (8323964).

Almost surely, 2^123025605 is an apocalyptic number.

123025605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123025605 is a deficient number, since it is larger than the sum of its proper divisors (76749531).

123025605 is an equidigital number, since it uses as much as digits as its factorization.

123025605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 123025605 is about 11091.6908088893. The cubic root of 123025605 is about 497.3534900181.

Adding to 123025605 its reverse (506520321), we get a palindrome (629545926).

The spelling of 123025605 in words is "one hundred twenty-three million, twenty-five thousand, six hundred five".