68509148 has 36 divisors (see below), whose sum is σ = 125619480. Its totient is φ = 32681376.

The previous prime is 68509139. The next prime is 68509159. The reversal of 68509148 is 84190586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436286 + ... + 436442.

It is an arithmetic number, because the mean of its divisors is an integer number (3489430).

Almost surely, 2^68509148 is an apocalyptic number.

It is an amenable number.

68509148 is a deficient number, since it is larger than the sum of its proper divisors (57110332).

68509148 is a wasteful number, since it uses less digits than its factorization.

68509148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 68509148 is about 8277.0253110644. The cubic root of 68509148 is about 409.1816872815.

The spelling of 68509148 in words is "sixty-eight million, five hundred nine thousand, one hundred forty-eight".