36149791 has 4 divisors (see below), whose sum is σ = 36163512. Its totient is φ = 36136072.

The previous prime is 36149719. The next prime is 36149797. The reversal of 36149791 is 19794163.

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

It is a cyclic number.

It is not a de Polignac number, because 36149791 - 2²¹ = 34052639 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 (36149797) 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, 1525 + ... + 8638.

It is an arithmetic number, because the mean of its divisors is an integer number (9040878).

Almost surely, 2^36149791 is an apocalyptic number.

36149791 is a deficient number, since it is larger than the sum of its proper divisors (13721).

36149791 is a wasteful number, since it uses less digits than its factorization.

36149791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13720.

The product of its digits is 40824, while the sum is 40.

The square root of 36149791 is about 6012.4696257029. The cubic root of 36149791 is about 330.6500532043.

The spelling of 36149791 in words is "thirty-six million, one hundred forty-nine thousand, seven hundred ninety-one".