123774 has 24 divisors (see below), whose sum is σ = 288648. Its totient is φ = 35280.

The previous prime is 123757. The next prime is 123787. The reversal of 123774 is 477321.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2⁹ + 7⁴ + 3⁷ + 7⁶ + 4⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84 + ... + 504.

It is an arithmetic number, because the mean of its divisors is an integer number (12027).

2¹²³⁷⁷⁴ is an apocalyptic number.

123774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144324).

123774 is an abundant number, since it is smaller than the sum of its proper divisors (164874).

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

123774 is a wasteful number, since it uses less digits than its factorization.

123774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440 (or 433 counting only the distinct ones).

The product of its digits is 1176, while the sum is 24.

The square root of 123774 is about 351.8152924476. The cubic root of 123774 is about 49.8359959751.

The spelling of 123774 in words is "one hundred twenty-three thousand, seven hundred seventy-four", and thus it is an iban number.