36126591 has 4 divisors (see below), whose sum is σ = 48168792. Its totient is φ = 24084392.

The previous prime is 36126577. The next prime is 36126593. The reversal of 36126591 is 19562163.

It is a happy number.

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 36126591 - 2⁶ = 36126527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36126593) 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, 6021096 + ... + 6021101.

It is an arithmetic number, because the mean of its divisors is an integer number (12042198).

Almost surely, 2^36126591 is an apocalyptic number.

36126591 is a deficient number, since it is larger than the sum of its proper divisors (12042201).

36126591 is a wasteful number, since it uses less digits than its factorization.

36126591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12042200.

The product of its digits is 9720, while the sum is 33.

The square root of 36126591 is about 6010.5399923801. The cubic root of 36126591 is about 330.5793038524.

The spelling of 36126591 in words is "thirty-six million, one hundred twenty-six thousand, five hundred ninety-one".