123494656 has 18 divisors (see below), whose sum is σ = 246507422. Its totient is φ = 61747200.

The previous prime is 123494629. The next prime is 123494719. The reversal of 123494656 is 656494321.

It can be written as a sum of positive squares in only one way, i.e., 99680256 + 23814400 = 9984^2 + 4880^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240945 + ... + 241456.

Almost surely, 2^123494656 is an apocalyptic number.

123494656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123494656 is a deficient number, since it is larger than the sum of its proper divisors (123012766).

123494656 is an frugal number, since it uses more digits than its factorization.

123494656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482417 (or 482403 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 123494656 is about 11112.8149449183. The cubic root of 123494656 is about 497.9847632204.

The spelling of 123494656 in words is "one hundred twenty-three million, four hundred ninety-four thousand, six hundred fifty-six".