618572441 has 2 divisors, whose sum is σ = 618572442. Its totient is φ = 618572440.

The previous prime is 618572431. The next prime is 618572459. The reversal of 618572441 is 144275816.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465308041 + 153264400 = 21571^2 + 12380^2 .

It is a cyclic number.

It is not a de Polignac number, because 618572441 - 2¹⁰ = 618571417 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 618572395 and 618572404.

It is not a weakly prime, because it can be changed into another prime (618572431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309286220 + 309286221.

It is an arithmetic number, because the mean of its divisors is an integer number (309286221).

Almost surely, 2^618572441 is an apocalyptic number.

It is an amenable number.

618572441 is a deficient number, since it is larger than the sum of its proper divisors (1).

618572441 is an equidigital number, since it uses as much as digits as its factorization.

618572441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 618572441 is about 24871.1166013913. The cubic root of 618572441 is about 852.0469425560.

The spelling of 618572441 in words is "six hundred eighteen million, five hundred seventy-two thousand, four hundred forty-one".