78253148 has 12 divisors (see below), whose sum is σ = 137593512. Its totient is φ = 38940720.

The previous prime is 78253127. The next prime is 78253157. The reversal of 78253148 is 84135287.

It is a super-3 number, since 3×78253148³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45515 + ... + 47202.

It is an arithmetic number, because the mean of its divisors is an integer number (11466126).

Almost surely, 2^78253148 is an apocalyptic number.

It is an amenable number.

78253148 is a deficient number, since it is larger than the sum of its proper divisors (59340364).

78253148 is a wasteful number, since it uses less digits than its factorization.

78253148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92932 (or 92930 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 78253148 is about 8846.0809401678. The cubic root of 78253148 is about 427.7275976496.

The spelling of 78253148 in words is "seventy-eight million, two hundred fifty-three thousand, one hundred forty-eight".