365641481 has 4 divisors (see below), whose sum is σ = 368996100. Its totient is φ = 362286864.

The previous prime is 365641433. The next prime is 365641487. The reversal of 365641481 is 184146563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 184146563 = 173 ⋅1064431.

It can be written as a sum of positive squares in 2 ways, for example, as 250272400 + 115369081 = 15820^2 + 10741^2 .

It is a cyclic number.

It is not a de Polignac number, because 365641481 - 2⁶ = 365641417 is a prime.

It is a super-2 number, since 2×365641481² = 267387385255746722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (365641487) 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, 1677146 + ... + 1677363.

It is an arithmetic number, because the mean of its divisors is an integer number (92249025).

Almost surely, 2^365641481 is an apocalyptic number.

It is an amenable number.

365641481 is a deficient number, since it is larger than the sum of its proper divisors (3354619).

365641481 is a wasteful number, since it uses less digits than its factorization.

365641481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354618.

The product of its digits is 69120, while the sum is 38.

The square root of 365641481 is about 19121.7541297863. The cubic root of 365641481 is about 715.0753704758.

The spelling of 365641481 in words is "three hundred sixty-five million, six hundred forty-one thousand, four hundred eighty-one".