1365450401 has 4 divisors (see below), whose sum is σ = 1560514752. Its totient is φ = 1170386052.

The previous prime is 1365450389. The next prime is 1365450403. The reversal of 1365450401 is 1040545631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1040545631 = 18493 ⋅56267.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365450401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365450403) 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, 97532165 + ... + 97532178.

It is an arithmetic number, because the mean of its divisors is an integer number (390128688).

Almost surely, 2^1365450401 is an apocalyptic number.

It is an amenable number.

1365450401 is a deficient number, since it is larger than the sum of its proper divisors (195064351).

1365450401 is an equidigital number, since it uses as much as digits as its factorization.

1365450401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195064350.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1365450401 is about 36952.0013125135. The cubic root of 1365450401 is about 1109.4097451590.

The spelling of 1365450401 in words is "one billion, three hundred sixty-five million, four hundred fifty thousand, four hundred one".