36781151 has 4 divisors (see below), whose sum is σ = 40124904. Its totient is φ = 33437400.

The previous prime is 36781133. The next prime is 36781153. The reversal of 36781151 is 15118763.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36781151 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 (36781153) 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, 1671860 + ... + 1671881.

It is an arithmetic number, because the mean of its divisors is an integer number (10031226).

Almost surely, 2^36781151 is an apocalyptic number.

36781151 is a deficient number, since it is larger than the sum of its proper divisors (3343753).

36781151 is a wasteful number, since it uses less digits than its factorization.

36781151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343752.

The product of its digits is 5040, while the sum is 32.

The square root of 36781151 is about 6064.7465734357. The cubic root of 36781151 is about 332.5639005082.

It can be divided in two parts, 367 and 81151, that added together give a palindrome (81518).

The spelling of 36781151 in words is "thirty-six million, seven hundred eighty-one thousand, one hundred fifty-one".