123801552 has 60 divisors (see below), whose sum is σ = 395971680. Its totient is φ = 35371584.

The previous prime is 123801547. The next prime is 123801589. The reversal of 123801552 is 255108321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60402 + ... + 62417.

It is an arithmetic number, because the mean of its divisors is an integer number (6599528).

Almost surely, 2^123801552 is an apocalyptic number.

123801552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123801552 is an abundant number, since it is smaller than the sum of its proper divisors (272170128).

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

123801552 is a wasteful number, since it uses less digits than its factorization.

123801552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122840 (or 122831 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 123801552 is about 11126.6145794667. The cubic root of 123801552 is about 498.3969351926.

Adding to 123801552 its reverse (255108321), we get a palindrome (378909873).

The spelling of 123801552 in words is "one hundred twenty-three million, eight hundred one thousand, five hundred fifty-two".