1451028569 has 2 divisors, whose sum is σ = 1451028570. Its totient is φ = 1451028568.

The previous prime is 1451028547. The next prime is 1451028617. The reversal of 1451028569 is 9658201541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1355712400 + 95316169 = 36820^2 + 9763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451028569 - 2²⁴ = 1434251353 is a prime.

It is a super-2 number, since 2×1451028569² = 4210967816108375522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1451028169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725514284 + 725514285.

It is an arithmetic number, because the mean of its divisors is an integer number (725514285).

Almost surely, 2^1451028569 is an apocalyptic number.

It is an amenable number.

1451028569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1451028569 is an equidigital number, since it uses as much as digits as its factorization.

1451028569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 1451028569 is about 38092.3689076959. The cubic root of 1451028569 is about 1132.1187619138.

The spelling of 1451028569 in words is "one billion, four hundred fifty-one million, twenty-eight thousand, five hundred sixty-nine".