1365155041 has 4 divisors (see below), whose sum is σ = 1424509632. Its totient is φ = 1305800452.

The previous prime is 1365155017. The next prime is 1365155053. The reversal of 1365155041 is 1405515631.

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: 1405515631 = 13 ⋅108116587.

It is a cyclic number.

It is not a de Polignac number, because 1365155041 - 2⁹ = 1365154529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1365154994 and 1365155012.

It is not an unprimeable number, because it can be changed into a prime (1365155741) 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, 29677261 + ... + 29677306.

It is an arithmetic number, because the mean of its divisors is an integer number (356127408).

Almost surely, 2^1365155041 is an apocalyptic number.

It is an amenable number.

1365155041 is a deficient number, since it is larger than the sum of its proper divisors (59354591).

1365155041 is an equidigital number, since it uses as much as digits as its factorization.

1365155041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59354590.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 1365155041 is about 36948.0045604631. The cubic root of 1365155041 is about 1109.3297474060.

The spelling of 1365155041 in words is "one billion, three hundred sixty-five million, one hundred fifty-five thousand, forty-one".