1285294201 has 3 divisors (see below), whose sum is σ = 1285330053. Its totient is φ = 1285258350.

The previous prime is 1285294189. The next prime is 1285294223. The reversal of 1285294201 is 1024925821.

The square root of 1285294201 is 35851.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1024925821 = 9467 ⋅108263.

It is not a de Polignac number, because 1285294201 - 2¹¹ = 1285292153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1285294261) 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 in 2 ways as a sum of consecutive naturals, for example, 17926 + ... + 53776.

It is an arithmetic number, because the mean of its divisors is an integer number (428443351).

Almost surely, 2^1285294201 is an apocalyptic number.

1285294201 is the 35851-st square number.

1285294201 is the 17926-th centered octagonal number.

It is an amenable number.

1285294201 is a deficient number, since it is larger than the sum of its proper divisors (35852).

1285294201 is an frugal number, since it uses more digits than its factorization.

1285294201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71702 (or 35851 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The cubic root of 1285294201 is about 1087.2619325798.

The spelling of 1285294201 in words is "one billion, two hundred eighty-five million, two hundred ninety-four thousand, two hundred one".