71226057 has 12 divisors (see below), whose sum is σ = 110473296. Its totient is φ = 40700520.

The previous prime is 71226049. The next prime is 71226083. The reversal of 71226057 is 75062217.

It is not a de Polignac number, because 71226057 - 2³ = 71226049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71226007) 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, 242119 + ... + 242412.

It is an arithmetic number, because the mean of its divisors is an integer number (9206108).

Almost surely, 2^71226057 is an apocalyptic number.

It is an amenable number.

71226057 is a deficient number, since it is larger than the sum of its proper divisors (39247239).

71226057 is a wasteful number, since it uses less digits than its factorization.

71226057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484548 (or 484541 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 71226057 is about 8439.5531279802. The cubic root of 71226057 is about 414.5207745431.

It can be divided in two parts, 71 and 226057, that added together give a triangular number (226128 = T₆₇₂).

The spelling of 71226057 in words is "seventy-one million, two hundred twenty-six thousand, fifty-seven".