1461428569 has 2 divisors, whose sum is σ = 1461428570. Its totient is φ = 1461428568.

The previous prime is 1461428561. The next prime is 1461428587. The reversal of 1461428569 is 9658241641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952339600 + 509088969 = 30860^2 + 22563^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461428569 - 2³ = 1461428561 is a prime.

It is a super-3 number, since 3×1461428569³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1461428561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730714284 + 730714285.

It is an arithmetic number, because the mean of its divisors is an integer number (730714285).

Almost surely, 2^1461428569 is an apocalyptic number.

It is an amenable number.

1461428569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461428569 is an equidigital number, since it uses as much as digits as its factorization.

1461428569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 46.

The square root of 1461428569 is about 38228.6354582530. The cubic root of 1461428569 is about 1134.8170816635.

The spelling of 1461428569 in words is "one billion, four hundred sixty-one million, four hundred twenty-eight thousand, five hundred sixty-nine".