123538562 has 16 divisors (see below), whose sum is σ = 213762240. Its totient is φ = 52449648.

The previous prime is 123538561. The next prime is 123538573. The reversal of 123538562 is 265835321.

It is not an unprimeable number, because it can be changed into a prime (123538561) 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, 39737 + ... + 42732.

It is an arithmetic number, because the mean of its divisors is an integer number (13360140).

Almost surely, 2^123538562 is an apocalyptic number.

123538562 is a deficient number, since it is larger than the sum of its proper divisors (90223678).

123538562 is a wasteful number, since it uses less digits than its factorization.

123538562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82585.

The product of its digits is 43200, while the sum is 35.

The square root of 123538562 is about 11114.7902364372. The cubic root of 123538562 is about 498.0437723281.

The spelling of 123538562 in words is "one hundred twenty-three million, five hundred thirty-eight thousand, five hundred sixty-two".