71351497 has 12 divisors (see below), whose sum is σ = 86610816. Its totient is φ = 58498440.

The previous prime is 71351461. The next prime is 71351507. The reversal of 71351497 is 79415317.

It is not a de Polignac number, because 71351497 - 2¹¹ = 71349449 is a prime.

It is a super-2 number, since 2×71351497² = 10182072248282018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71351407) 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 11 ways as a sum of consecutive naturals, for example, 30529 + ... + 32782.

It is an arithmetic number, because the mean of its divisors is an integer number (7217568).

Almost surely, 2^71351497 is an apocalyptic number.

It is an amenable number.

71351497 is a deficient number, since it is larger than the sum of its proper divisors (15259319).

71351497 is a wasteful number, since it uses less digits than its factorization.

71351497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63348 (or 63341 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 71351497 is about 8446.9815318846. The cubic root of 71351497 is about 414.7639766931.

The spelling of 71351497 in words is "seventy-one million, three hundred fifty-one thousand, four hundred ninety-seven".