682008155 has 4 divisors (see below), whose sum is σ = 818409792. Its totient is φ = 545606520.

The previous prime is 682008113. The next prime is 682008163. The reversal of 682008155 is 551800286.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551800286 = 2 ⋅275900143.

It is not a de Polignac number, because 682008155 - 2²⁰ = 680959579 is a prime.

It is a super-3 number, since 3×682008155³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68200811 + ... + 68200820.

It is an arithmetic number, because the mean of its divisors is an integer number (204602448).

Almost surely, 2^682008155 is an apocalyptic number.

682008155 is a deficient number, since it is larger than the sum of its proper divisors (136401637).

682008155 is a wasteful number, since it uses less digits than its factorization.

682008155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136401636.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 682008155 is about 26115.2858494790. The cubic root of 682008155 is about 880.2307224746.

The spelling of 682008155 in words is "six hundred eighty-two million, eight thousand, one hundred fifty-five".