2021072953 has 2 divisors, whose sum is σ = 2021072954. Its totient is φ = 2021072952.

The previous prime is 2021072947. The next prime is 2021072981. The reversal of 2021072953 is 3592701202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1079319609 + 941753344 = 32853^2 + 30688^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021072953 - 2¹³ = 2021064761 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021072153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010536476 + 1010536477.

It is an arithmetic number, because the mean of its divisors is an integer number (1010536477).

Almost surely, 2^2021072953 is an apocalyptic number.

It is an amenable number.

2021072953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021072953 is an equidigital number, since it uses as much as digits as its factorization.

2021072953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2021072953 is about 44956.3449693144. The cubic root of 2021072953 is about 1264.3306416255.

The spelling of 2021072953 in words is "two billion, twenty-one million, seventy-two thousand, nine hundred fifty-three".