2061288457 has 2 divisors, whose sum is σ = 2061288458. Its totient is φ = 2061288456.

The previous prime is 2061288431. The next prime is 2061288469. The reversal of 2061288457 is 7548821602.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2044486656 + 16801801 = 45216^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061288457 - 2¹⁹ = 2060764169 is a prime.

It is a super-2 number, since 2×2061288457² = 8497820205922881698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2061288157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030644228 + 1030644229.

It is an arithmetic number, because the mean of its divisors is an integer number (1030644229).

Almost surely, 2^2061288457 is an apocalyptic number.

It is an amenable number.

2061288457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061288457 is an equidigital number, since it uses as much as digits as its factorization.

2061288457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 2061288457 is about 45401.4147026279. The cubic root of 2061288457 is about 1272.6615513786.

The spelling of 2061288457 in words is "two billion, sixty-one million, two hundred eighty-eight thousand, four hundred fifty-seven".