840054513 has 8 divisors (see below), whose sum is σ = 1158696000. Its totient is φ = 540724688.

The previous prime is 840054503. The next prime is 840054533. The reversal of 840054513 is 315450048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 840054513 - 2⁴ = 840054497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (840054503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4827813 + ... + 4827986.

It is an arithmetic number, because the mean of its divisors is an integer number (144837000).

Almost surely, 2^840054513 is an apocalyptic number.

It is an amenable number.

840054513 is a deficient number, since it is larger than the sum of its proper divisors (318641487).

840054513 is a wasteful number, since it uses less digits than its factorization.

840054513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655831.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 840054513 is about 28983.6939157175. The cubic root of 840054513 is about 943.5592063878.

The spelling of 840054513 in words is "eight hundred forty million, fifty-four thousand, five hundred thirteen".