123277480 has 16 divisors (see below), whose sum is σ = 277374420. Its totient is φ = 49310976.

The previous prime is 123277477. The next prime is 123277481. The reversal of 123277480 is 84772321.

It can be written as a sum of positive squares in 2 ways, for example, as 118069956 + 5207524 = 10866^2 + 2282^2 .

It is not an unprimeable number, because it can be changed into a prime (123277481) 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 3 ways as a sum of consecutive naturals, for example, 1540929 + ... + 1541008.

Almost surely, 2^123277480 is an apocalyptic number.

123277480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123277480 is an abundant number, since it is smaller than the sum of its proper divisors (154096940).

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

123277480 is a wasteful number, since it uses less digits than its factorization.

123277480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081948 (or 3081944 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 123277480 is about 11103.0392235640. The cubic root of 123277480 is about 497.6926755526.

The spelling of 123277480 in words is "one hundred twenty-three million, two hundred seventy-seven thousand, four hundred eighty".