123540052 has 36 divisors (see below), whose sum is σ = 233500960. Its totient is φ = 57032640.

The previous prime is 123540049. The next prime is 123540083. The reversal of 123540052 is 250045321.

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, 127273 + ... + 128239.

Almost surely, 2^123540052 is an apocalyptic number.

It is an amenable number.

123540052 is a deficient number, since it is larger than the sum of its proper divisors (109960908).

123540052 is a wasteful number, since it uses less digits than its factorization.

123540052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 123540052 is about 11114.8572640408. The cubic root of 123540052 is about 498.0457746239.

Adding to 123540052 its reverse (250045321), we get a palindrome (373585373).

The spelling of 123540052 in words is "one hundred twenty-three million, five hundred forty thousand, fifty-two".