71191370 has 16 divisors (see below), whose sum is σ = 130871808. Its totient is φ = 27870480.

The previous prime is 71191361. The next prime is 71191387. The reversal of 71191370 is 7319117.

It is a super-2 number, since 2×71191370² = 10136422324953800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75266 + ... + 76205.

It is an arithmetic number, because the mean of its divisors is an integer number (8179488).

Almost surely, 2^71191370 is an apocalyptic number.

71191370 is a deficient number, since it is larger than the sum of its proper divisors (59680438).

71191370 is a wasteful number, since it uses less digits than its factorization.

71191370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151525.

The product of its (nonzero) digits is 1323, while the sum is 29.

The square root of 71191370 is about 8437.4978518516. The cubic root of 71191370 is about 414.4534732517.

The spelling of 71191370 in words is "seventy-one million, one hundred ninety-one thousand, three hundred seventy".