8140355 has 4 divisors (see below), whose sum is σ = 9768432. Its totient is φ = 6512280.

The previous prime is 8140351. The next prime is 8140361. The reversal of 8140355 is 5530418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5530418 = 2 ⋅2765209.

It is not a de Polignac number, because 8140355 - 2² = 8140351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8140351) 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, 814031 + ... + 814040.

It is an arithmetic number, because the mean of its divisors is an integer number (2442108).

Almost surely, 2^8140355 is an apocalyptic number.

8140355 is a deficient number, since it is larger than the sum of its proper divisors (1628077).

8140355 is a wasteful number, since it uses less digits than its factorization.

8140355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628076.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 8140355 is about 2853.1307365769. The cubic root of 8140355 is about 201.1628507866.

The spelling of 8140355 in words is "eight million, one hundred forty thousand, three hundred fifty-five".