618490501 has 2 divisors, whose sum is σ = 618490502. Its totient is φ = 618490500.

The previous prime is 618490469. The next prime is 618490541. The reversal of 618490501 is 105094816.

618490501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519885601 + 98604900 = 22801^2 + 9930^2 .

It is a cyclic number.

It is not a de Polignac number, because 618490501 - 2⁵ = 618490469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (618490541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309245250 + 309245251.

It is an arithmetic number, because the mean of its divisors is an integer number (309245251).

Almost surely, 2^618490501 is an apocalyptic number.

It is an amenable number.

618490501 is a deficient number, since it is larger than the sum of its proper divisors (1).

618490501 is an equidigital number, since it uses as much as digits as its factorization.

618490501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 618490501 is about 24869.4692544895. The cubic root of 618490501 is about 852.0093183938.

The spelling of 618490501 in words is "six hundred eighteen million, four hundred ninety thousand, five hundred one".