1020451 has 2 divisors, whose sum is σ = 1020452. Its totient is φ = 1020450.

The previous prime is 1020431. The next prime is 1020457. The reversal of 1020451 is 1540201.

1020451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020451 - 2⁵ = 1020419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510225 + 510226.

It is an arithmetic number, because the mean of its divisors is an integer number (510226).

2^1020451 is an apocalyptic number.

1020451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020451 is an equidigital number, since it uses as much as digits as its factorization.

1020451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1020451 is about 1010.1737474316. The cubic root of 1020451 is about 100.6771049412.

Adding to 1020451 its reverse (1540201), we get a palindrome (2560652).

The spelling of 1020451 in words is "one million, twenty thousand, four hundred fifty-one".