71514534 has 64 divisors (see below), whose sum is σ = 177117696. Its totient is φ = 18745344.

The previous prime is 71514533. The next prime is 71514557. The reversal of 71514534 is 43541517.

It is a super-2 number, since 2×71514534² = 10228657146474312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71514533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123654 + ... + 124230.

It is an arithmetic number, because the mean of its divisors is an integer number (2767464).

Almost surely, 2^71514534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71514534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88558848).

71514534 is an abundant number, since it is smaller than the sum of its proper divisors (105603162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71514534 is a wasteful number, since it uses less digits than its factorization.

71514534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 8400, while the sum is 30.

The square root of 71514534 is about 8456.6266324108. The cubic root of 71514534 is about 415.0796460093.

It can be divided in two parts, 71 and 514534, that added together give a triangular number (514605 = T₁₀₁₄).

The spelling of 71514534 in words is "seventy-one million, five hundred fourteen thousand, five hundred thirty-four".