71531414 has 4 divisors (see below), whose sum is σ = 107297124. Its totient is φ = 35765706.

The previous prime is 71531413. The next prime is 71531431. The reversal of 71531414 is 41413517.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71531413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17882852 + ... + 17882855.

It is an arithmetic number, because the mean of its divisors is an integer number (26824281).

Almost surely, 2^71531414 is an apocalyptic number.

71531414 is a deficient number, since it is larger than the sum of its proper divisors (35765710).

71531414 is a wasteful number, since it uses less digits than its factorization.

71531414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35765709.

The product of its digits is 1680, while the sum is 26.

The square root of 71531414 is about 8457.6246074179. The cubic root of 71531414 is about 415.1123013445.

The spelling of 71531414 in words is "seventy-one million, five hundred thirty-one thousand, four hundred fourteen".