618231061 has 32 divisors (see below), whose sum is σ = 772063488. Its totient is φ = 483025920.

The previous prime is 618231013. The next prime is 618231079. The reversal of 618231061 is 160132816.

618231061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 618231061 - 2⁷ = 618230933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618231001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522891 + ... + 524071.

It is an arithmetic number, because the mean of its divisors is an integer number (24126984).

Almost surely, 2^618231061 is an apocalyptic number.

It is an amenable number.

618231061 is a deficient number, since it is larger than the sum of its proper divisors (153832427).

618231061 is a wasteful number, since it uses less digits than its factorization.

618231061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 618231061 is about 24864.2526732657. The cubic root of 618231061 is about 851.8901701278.

Adding to 618231061 its reverse (160132816), we get a palindrome (778363877).

The spelling of 618231061 in words is "six hundred eighteen million, two hundred thirty-one thousand, sixty-one".