71125434 has 12 divisors (see below), whose sum is σ = 154105146. Its totient is φ = 23708472.

The previous prime is 71125427. The next prime is 71125441. The reversal of 71125434 is 43452117.

71125434 is a `hidden beast` number, since 7 + 112 + 543 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (71125427) and next prime (71125441).

It can be written as a sum of positive squares in only one way, i.e., 47651409 + 23474025 = 6903^2 + 4845^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71125398 and 71125407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1975689 + ... + 1975724.

Almost surely, 2^71125434 is an apocalyptic number.

71125434 is an abundant number, since it is smaller than the sum of its proper divisors (82979712).

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

71125434 is a wasteful number, since it uses less digits than its factorization.

71125434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951421 (or 3951418 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 71125434 is about 8433.5896271991. The cubic root of 71125434 is about 414.3254809345.

The spelling of 71125434 in words is "seventy-one million, one hundred twenty-five thousand, four hundred thirty-four".