71349465 has 48 divisors (see below), whose sum is σ = 132148800. Its totient is φ = 32757120.

The previous prime is 71349457. The next prime is 71349469. The reversal of 71349465 is 56494317.

It is not a de Polignac number, because 71349465 - 2³ = 71349457 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (71349469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33451 + ... + 35519.

It is an arithmetic number, because the mean of its divisors is an integer number (2753100).

Almost surely, 2^71349465 is an apocalyptic number.

71349465 is the 6897-th pentagonal number.

It is an amenable number.

71349465 is a deficient number, since it is larger than the sum of its proper divisors (60799335).

71349465 is a wasteful number, since it uses less digits than its factorization.

71349465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118 (or 2107 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 71349465 is about 8446.8612513762. The cubic root of 71349465 is about 414.7600393387.

The spelling of 71349465 in words is "seventy-one million, three hundred forty-nine thousand, four hundred sixty-five".