367921261 has 2 divisors, whose sum is σ = 367921262. Its totient is φ = 367921260.

The previous prime is 367921189. The next prime is 367921273. The reversal of 367921261 is 162129763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364428100 + 3493161 = 19090^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 367921261 - 2¹¹ = 367919213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 367921261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (367921061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183960630 + 183960631.

It is an arithmetic number, because the mean of its divisors is an integer number (183960631).

Almost surely, 2^367921261 is an apocalyptic number.

It is an amenable number.

367921261 is a deficient number, since it is larger than the sum of its proper divisors (1).

367921261 is an equidigital number, since it uses as much as digits as its factorization.

367921261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 367921261 is about 19181.2737064044. The cubic root of 367921261 is about 716.5584608462.

It can be divided in two parts, 36 and 7921261, that added together give a palindrome (7921297).

The spelling of 367921261 in words is "three hundred sixty-seven million, nine hundred twenty-one thousand, two hundred sixty-one".