1365242401 has 4 divisors (see below), whose sum is σ = 1375207812. Its totient is φ = 1355276992.

The previous prime is 1365242399. The next prime is 1365242407. The reversal of 1365242401 is 1042425631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 315417600 + 1049824801 = 17760^2 + 32401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1365242401 - 2¹ = 1365242399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1365242401.

It is not an unprimeable number, because it can be changed into a prime (1365242407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4982500 + ... + 4982773.

It is an arithmetic number, because the mean of its divisors is an integer number (343801953).

Almost surely, 2^1365242401 is an apocalyptic number.

It is an amenable number.

1365242401 is a deficient number, since it is larger than the sum of its proper divisors (9965411).

1365242401 is an equidigital number, since it uses as much as digits as its factorization.

1365242401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965410.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1365242401 is about 36949.1867434183. The cubic root of 1365242401 is about 1109.3534099148.

The spelling of 1365242401 in words is "one billion, three hundred sixty-five million, two hundred forty-two thousand, four hundred one".