8140533501 has 4 divisors (see below), whose sum is σ = 10854044672. Its totient is φ = 5427022332.

The previous prime is 8140533481. The next prime is 8140533517. The reversal of 8140533501 is 1053350418.

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.

It is not a de Polignac number, because 8140533501 - 2²¹ = 8138436349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140533301) 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, 1356755581 + ... + 1356755586.

It is an arithmetic number, because the mean of its divisors is an integer number (2713511168).

Almost surely, 2^8140533501 is an apocalyptic number.

It is an amenable number.

8140533501 is a deficient number, since it is larger than the sum of its proper divisors (2713511171).

8140533501 is a wasteful number, since it uses less digits than its factorization.

8140533501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713511170.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 8140533501 is about 90224.9051038570. The cubic root of 8140533501 is about 2011.6432113642.

Adding to 8140533501 its reverse (1053350418), we get a palindrome (9193883919).

The spelling of 8140533501 in words is "eight billion, one hundred forty million, five hundred thirty-three thousand, five hundred one".