123620552 has 32 divisors (see below), whose sum is σ = 259701120. Its totient is φ = 54671040.

The previous prime is 123620521. The next prime is 123620557. The reversal of 123620552 is 255026321.

It is not an unprimeable number, because it can be changed into a prime (123620557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15728 + ... + 22239.

It is an arithmetic number, because the mean of its divisors is an integer number (8115660).

Almost surely, 2^123620552 is an apocalyptic number.

It is an amenable number.

123620552 is an abundant number, since it is smaller than the sum of its proper divisors (136080568).

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

123620552 is a wasteful number, since it uses less digits than its factorization.

123620552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38021 (or 38017 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 123620552 is about 11118.4779533891. The cubic root of 123620552 is about 498.1539284280.

Adding to 123620552 its reverse (255026321), we get a palindrome (378646873).

The spelling of 123620552 in words is "one hundred twenty-three million, six hundred twenty thousand, five hundred fifty-two".