369085261 has 4 divisors (see below), whose sum is σ = 371779452. Its totient is φ = 366391072.

The previous prime is 369085247. The next prime is 369085267. The reversal of 369085261 is 162580963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 162580963 = 2411 ⋅67433.

It can be written as a sum of positive squares in 2 ways, for example, as 153289161 + 215796100 = 12381^2 + 14690^2 .

It is a cyclic number.

It is not a de Polignac number, because 369085261 - 2⁵ = 369085229 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (369085267) 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, 1346890 + ... + 1347163.

It is an arithmetic number, because the mean of its divisors is an integer number (92944863).

Almost surely, 2^369085261 is an apocalyptic number.

It is an amenable number.

369085261 is a deficient number, since it is larger than the sum of its proper divisors (2694191).

369085261 is a wasteful number, since it uses less digits than its factorization.

369085261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694190.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 369085261 is about 19211.5918393037. The cubic root of 369085261 is about 717.3133288820.

The spelling of 369085261 in words is "three hundred sixty-nine million, eighty-five thousand, two hundred sixty-one".