123773265 has 144 divisors (see below), whose sum is σ = 283420800. Its totient is φ = 51438240.

The previous prime is 123773263. The next prime is 123773267. The reversal of 123773265 is 562377321.

It is an interprime number because it is at equal distance from previous prime (123773263) and next prime (123773267).

It is not a de Polignac number, because 123773265 - 2¹ = 123773263 is a prime.

It is a super-2 number, since 2×123773265² = 30639642257520450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123773263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11252110 + ... + 11252120.

It is an arithmetic number, because the mean of its divisors is an integer number (1968200).

Almost surely, 2^123773265 is an apocalyptic number.

123773265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123773265 is an abundant number, since it is smaller than the sum of its proper divisors (159647535).

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

123773265 is an frugal number, since it uses more digits than its factorization.

123773265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 26 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 123773265 is about 11125.3433654876. The cubic root of 123773265 is about 498.3589732883.

The spelling of 123773265 in words is "one hundred twenty-three million, seven hundred seventy-three thousand, two hundred sixty-five".