71074530 has 32 divisors (see below), whose sum is σ = 189532800. Its totient is φ = 18953136.

The previous prime is 71074529. The next prime is 71074559. The reversal of 71074530 is 3547017.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71074494 and 71074503.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131350 + ... + 131889.

It is an arithmetic number, because the mean of its divisors is an integer number (5922900).

Almost surely, 2^71074530 is an apocalyptic number.

71074530 is an abundant number, since it is smaller than the sum of its proper divisors (118458270).

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

71074530 is a wasteful number, since it uses less digits than its factorization.

71074530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263255 (or 263249 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 71074530 is about 8430.5711550286. The cubic root of 71074530 is about 414.2266140143.

The spelling of 71074530 in words is "seventy-one million, seventy-four thousand, five hundred thirty".