562640121 has 16 divisors (see below), whose sum is σ = 834013120. Its totient is φ = 374880960.

The previous prime is 562640083. The next prime is 562640137. The reversal of 562640121 is 121046265.

562640121 is a `hidden beast` number, since 5 + 6 + 2 + 640 + 12 + 1 = 666.

It is not a de Polignac number, because 562640121 - 2¹⁷ = 562509049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (562640161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53526 + ... + 63168.

It is an arithmetic number, because the mean of its divisors is an integer number (52125820).

Almost surely, 2^562640121 is an apocalyptic number.

It is an amenable number.

562640121 is a deficient number, since it is larger than the sum of its proper divisors (271372999).

562640121 is a wasteful number, since it uses less digits than its factorization.

562640121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813 (or 11807 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 562640121 is about 23720.0362773753. The cubic root of 562640121 is about 825.5503501401.

Adding to 562640121 its reverse (121046265), we get a palindrome (683686386).

The spelling of 562640121 in words is "five hundred sixty-two million, six hundred forty thousand, one hundred twenty-one".