8641537145 has 16 divisors (see below), whose sum is σ = 10422598080. Its totient is φ = 6878136384.

The previous prime is 8641537141. The next prime is 8641537181. The reversal of 8641537145 is 5417351468.

It is a cyclic number.

It is not a de Polignac number, because 8641537145 - 2² = 8641537141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8641537096 and 8641537105.

It is not an unprimeable number, because it can be changed into a prime (8641537141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1019294 + ... + 1027736.

It is an arithmetic number, because the mean of its divisors is an integer number (651412380).

Almost surely, 2^8641537145 is an apocalyptic number.

It is an amenable number.

8641537145 is a deficient number, since it is larger than the sum of its proper divisors (1781060935).

8641537145 is a wasteful number, since it uses less digits than its factorization.

8641537145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464.

The product of its digits is 403200, while the sum is 44.

The square root of 8641537145 is about 92959.8684648381. The cubic root of 8641537145 is about 2052.0928177303.

The spelling of 8641537145 in words is "eight billion, six hundred forty-one million, five hundred thirty-seven thousand, one hundred forty-five".