365861061 has 6 divisors (see below), whose sum is σ = 528465990. Its totient is φ = 243907368.

The previous prime is 365861059. The next prime is 365861077. The reversal of 365861061 is 160168563.

It is a happy number.

365861061 is a `hidden beast` number, since 3 + 6 + 586 + 10 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 365536161 + 324900 = 19119^2 + 570^2 .

It is not a de Polignac number, because 365861061 - 2¹ = 365861059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365861021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20325606 + ... + 20325623.

It is an arithmetic number, because the mean of its divisors is an integer number (88077665).

Almost surely, 2^365861061 is an apocalyptic number.

It is an amenable number.

365861061 is a deficient number, since it is larger than the sum of its proper divisors (162604929).

365861061 is a wasteful number, since it uses less digits than its factorization.

365861061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40651235 (or 40651232 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 365861061 is about 19127.4948960913. The cubic root of 365861061 is about 715.2184840969.

The spelling of 365861061 in words is "three hundred sixty-five million, eight hundred sixty-one thousand, sixty-one".