36543261 has 4 divisors (see below), whose sum is σ = 48724352. Its totient is φ = 24362172.

The previous prime is 36543257. The next prime is 36543263. The reversal of 36543261 is 16234563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16234563 = 3 ⋅5411521.

It is not a de Polignac number, because 36543261 - 2² = 36543257 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 (36543263) 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, 6090541 + ... + 6090546.

It is an arithmetic number, because the mean of its divisors is an integer number (12181088).

Almost surely, 2^36543261 is an apocalyptic number.

It is an amenable number.

36543261 is a deficient number, since it is larger than the sum of its proper divisors (12181091).

36543261 is a wasteful number, since it uses less digits than its factorization.

36543261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181090.

The product of its digits is 12960, while the sum is 30.

The square root of 36543261 is about 6045.1022323861. The cubic root of 36543261 is about 331.8453730278.

The spelling of 36543261 in words is "thirty-six million, five hundred forty-three thousand, two hundred sixty-one".