620101189 has 2 divisors, whose sum is σ = 620101190. Its totient is φ = 620101188.

The previous prime is 620101177. The next prime is 620101213. The reversal of 620101189 is 981101026.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318801025 + 301300164 = 17855^2 + 17358^2 .

It is a cyclic number.

It is not a de Polignac number, because 620101189 - 2¹³ = 620092997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620101159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310050594 + 310050595.

It is an arithmetic number, because the mean of its divisors is an integer number (310050595).

Almost surely, 2^620101189 is an apocalyptic number.

It is an amenable number.

620101189 is a deficient number, since it is larger than the sum of its proper divisors (1).

620101189 is an equidigital number, since it uses as much as digits as its factorization.

620101189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 620101189 is about 24901.8310370944. The cubic root of 620101189 is about 852.7482850802.

The spelling of 620101189 in words is "six hundred twenty million, one hundred one thousand, one hundred eighty-nine".