71226651 has 12 divisors (see below), whose sum is σ = 100885112. Its totient is φ = 44690688.

The previous prime is 71226643. The next prime is 71226671. The reversal of 71226651 is 15662217.

It is not a de Polignac number, because 71226651 - 2³ = 71226643 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71226641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40210 + ... + 41943.

Almost surely, 2^71226651 is an apocalyptic number.

71226651 is a deficient number, since it is larger than the sum of its proper divisors (29658461).

71226651 is a wasteful number, since it uses less digits than its factorization.

71226651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82190 (or 82173 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 71226651 is about 8439.5883193435. The cubic root of 71226651 is about 414.5219268585.

Adding to 71226651 its reverse (15662217), we get a palindrome (86888868).

The spelling of 71226651 in words is "seventy-one million, two hundred twenty-six thousand, six hundred fifty-one".