2153220451 has 2 divisors, whose sum is σ = 2153220452. Its totient is φ = 2153220450.

The previous prime is 2153220437. The next prime is 2153220497. The reversal of 2153220451 is 1540223512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2153220451 - 2¹⁹ = 2152696163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2153220551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076610225 + 1076610226.

It is an arithmetic number, because the mean of its divisors is an integer number (1076610226).

Almost surely, 2^2153220451 is an apocalyptic number.

2153220451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153220451 is an equidigital number, since it uses as much as digits as its factorization.

2153220451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2153220451 is about 46402.8064991763. The cubic root of 2153220451 is about 1291.3069803582.

Adding to 2153220451 its reverse (1540223512), we get a palindrome (3693443963).

The spelling of 2153220451 in words is "two billion, one hundred fifty-three million, two hundred twenty thousand, four hundred fifty-one".