71470148 has 6 divisors (see below), whose sum is σ = 125072766. Its totient is φ = 35735072.

The previous prime is 71470141. The next prime is 71470169. The reversal of 71470148 is 84107417.

It can be written as a sum of positive squares in only one way, i.e., 70425664 + 1044484 = 8392^2 + 1022^2 .

It is not an unprimeable number, because it can be changed into a prime (71470141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8933765 + ... + 8933772.

It is an arithmetic number, because the mean of its divisors is an integer number (20845461).

Almost surely, 2^71470148 is an apocalyptic number.

It is an amenable number.

71470148 is a deficient number, since it is larger than the sum of its proper divisors (53602618).

71470148 is a wasteful number, since it uses less digits than its factorization.

71470148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867541 (or 17867539 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 71470148 is about 8454.0018925950. The cubic root of 71470148 is about 414.9937542003.

Subtracting from 71470148 its sum of digits (32), we obtain a square (71470116 = 8454²).

The spelling of 71470148 in words is "seventy-one million, four hundred seventy thousand, one hundred forty-eight".