36730261 has 2 divisors, whose sum is σ = 36730262. Its totient is φ = 36730260.

The previous prime is 36730259. The next prime is 36730283. The reversal of 36730261 is 16203763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 17589636 = 4375^2 + 4194^2 .

It is an emirp because it is prime and its reverse (16203763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36730261 - 2¹ = 36730259 is a prime.

It is a super-2 number, since 2×36730261² = 2698224146256242, which contains 22 as substring.

Together with 36730259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36730201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18365130 + 18365131.

It is an arithmetic number, because the mean of its divisors is an integer number (18365131).

Almost surely, 2^36730261 is an apocalyptic number.

36730261 is the 3240-th centered heptagonal number.

It is an amenable number.

36730261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36730261 is an equidigital number, since it uses as much as digits as its factorization.

36730261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 36730261 is about 6060.5495625397. The cubic root of 36730261 is about 332.4104524529.

It can be divided in two parts, 367 and 30261, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 36730261 in words is "thirty-six million, seven hundred thirty thousand, two hundred sixty-one".