361161837 has 6 divisors (see below), whose sum is σ = 521678222. Its totient is φ = 240774552.

The previous prime is 361161817. The next prime is 361161869. The reversal of 361161837 is 738161163.

361161837 is a `hidden beast` number, since 3 + 6 + 1 + 1 + 618 + 37 = 666.

It can be written as a sum of positive squares in only one way, i.e., 285576201 + 75585636 = 16899^2 + 8694^2 .

It is not a de Polignac number, because 361161837 - 2¹⁶ = 361096301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361161817) 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, 20064538 + ... + 20064555.

Almost surely, 2^361161837 is an apocalyptic number.

It is an amenable number.

361161837 is a deficient number, since it is larger than the sum of its proper divisors (160516385).

361161837 is a wasteful number, since it uses less digits than its factorization.

361161837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40129099 (or 40129096 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 361161837 is about 19004.2583912133. The cubic root of 361161837 is about 712.1431224771.

The spelling of 361161837 in words is "three hundred sixty-one million, one hundred sixty-one thousand, eight hundred thirty-seven".