210052154009 has 2 divisors, whose sum is σ = 210052154010. Its totient is φ = 210052154008.

The previous prime is 210052153951. The next prime is 210052154023. The reversal of 210052154009 is 900451250012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160380225625 + 49671928384 = 400475^2 + 222872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210052154009 is a prime.

It is not a weakly prime, because it can be changed into another prime (210052154069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105026077004 + 105026077005.

It is an arithmetic number, because the mean of its divisors is an integer number (105026077005).

Almost surely, 2^210052154009 is an apocalyptic number.

It is an amenable number.

210052154009 is a deficient number, since it is larger than the sum of its proper divisors (1).

210052154009 is an equidigital number, since it uses as much as digits as its factorization.

210052154009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 210052154009 in words is "two hundred ten billion, fifty-two million, one hundred fifty-four thousand, nine".