123553696 has 36 divisors (see below), whose sum is σ = 282963618. Its totient is φ = 52950912.

The previous prime is 123553681. The next prime is 123553697. The reversal of 123553696 is 696355321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 87984400 + 35569296 = 9380^2 + 5964^2 .

It is not an unprimeable number, because it can be changed into a prime (123553697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37831 + ... + 40966.

Almost surely, 2^123553696 is an apocalyptic number.

123553696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123553696 is an abundant number, since it is smaller than the sum of its proper divisors (159409922).

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

123553696 is an equidigital number, since it uses as much as digits as its factorization.

123553696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78821 (or 78806 counting only the distinct ones).

The product of its digits is 145800, while the sum is 40.

The square root of 123553696 is about 11115.4710201592. The cubic root of 123553696 is about 498.0641089921.

The spelling of 123553696 in words is "one hundred twenty-three million, five hundred fifty-three thousand, six hundred ninety-six".