71620148 has 12 divisors (see below), whose sum is σ = 125500032. Its totient is φ = 35763000.

The previous prime is 71620147. The next prime is 71620181. The reversal of 71620148 is 84102617.

It is a self number, because there is not a number n which added to its sum of digits gives 71620148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71620147) by changing a digit.

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, 8228 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (10458336).

Almost surely, 2^71620148 is an apocalyptic number.

It is an amenable number.

71620148 is a deficient number, since it is larger than the sum of its proper divisors (53879884).

71620148 is a wasteful number, since it uses less digits than its factorization.

71620148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23542 (or 23540 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 71620148 is about 8462.8687807386. The cubic root of 71620148 is about 415.2838779633.

The spelling of 71620148 in words is "seventy-one million, six hundred twenty thousand, one hundred forty-eight".