83140918 has 16 divisors (see below), whose sum is σ = 142700544. Its totient is φ = 35588520.

The previous prime is 83140909. The next prime is 83140927. The reversal of 83140918 is 81904138.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83140909) and next prime (83140927).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10123 + ... + 16393.

It is an arithmetic number, because the mean of its divisors is an integer number (8918784).

Almost surely, 2^83140918 is an apocalyptic number.

83140918 is a deficient number, since it is larger than the sum of its proper divisors (59559626).

83140918 is a wasteful number, since it uses less digits than its factorization.

83140918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7227.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 83140918 is about 9118.1641792633. The cubic root of 83140918 is about 436.4537927379.

The spelling of 83140918 in words is "eighty-three million, one hundred forty thousand, nine hundred eighteen".