71122470 has 32 divisors (see below), whose sum is σ = 171072000. Its totient is φ = 18924000.

The previous prime is 71122459. The next prime is 71122487. The reversal of 71122470 is 7422117.

It is a self number, because there is not a number n which added to its sum of digits gives 71122470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12595 + ... + 17345.

It is an arithmetic number, because the mean of its divisors is an integer number (5346000).

Almost surely, 2^71122470 is an apocalyptic number.

71122470 is an abundant number, since it is smaller than the sum of its proper divisors (99949530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71122470 is a wasteful number, since it uses less digits than its factorization.

71122470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 71122470 is about 8433.4138994834. The cubic root of 71122470 is about 414.3197254791.

Adding to 71122470 its reverse (7422117), we get a palindrome (78544587).

The spelling of 71122470 in words is "seventy-one million, one hundred twenty-two thousand, four hundred seventy".