71146406 has 16 divisors (see below), whose sum is σ = 111538944. Its totient is φ = 33971784.

The previous prime is 71146399. The next prime is 71146417. The reversal of 71146406 is 60464117.

It is a super-2 number, since 2×71146406² = 10123622173433672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53951 + ... + 55253.

It is an arithmetic number, because the mean of its divisors is an integer number (6971184).

Almost surely, 2^71146406 is an apocalyptic number.

71146406 is a deficient number, since it is larger than the sum of its proper divisors (40392538).

71146406 is a wasteful number, since it uses less digits than its factorization.

71146406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 71146406 is about 8434.8328969814. The cubic root of 71146406 is about 414.3661995148.

The spelling of 71146406 in words is "seventy-one million, one hundred forty-six thousand, four hundred six".