71158450 has 24 divisors (see below), whose sum is σ = 144388080. Its totient is φ = 25875600.

The previous prime is 71158393. The next prime is 71158453. The reversal of 71158450 is 5485117.

It is not an unprimeable number, because it can be changed into a prime (71158453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64140 + ... + 65239.

It is an arithmetic number, because the mean of its divisors is an integer number (6016170).

Almost surely, 2^71158450 is an apocalyptic number.

71158450 is an abundant number, since it is smaller than the sum of its proper divisors (73229630).

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

71158450 is a wasteful number, since it uses less digits than its factorization.

71158450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129402 (or 129397 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 71158450 is about 8435.5468109661. The cubic root of 71158450 is about 414.3895801520.

The spelling of 71158450 in words is "seventy-one million, one hundred fifty-eight thousand, four hundred fifty".