71450 has 12 divisors (see below), whose sum is σ = 132990. Its totient is φ = 28560.

The previous prime is 71443. The next prime is 71453. The reversal of 71450 is 5417.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 34969 + 36481 = 187^2 + 191^2 .

It is not an unprimeable number, because it can be changed into a prime (71453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 665 + ... + 764.

2⁷¹⁴⁵⁰ is an apocalyptic number.

71450 is a deficient number, since it is larger than the sum of its proper divisors (61540).

71450 is a wasteful number, since it uses less digits than its factorization.

71450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 71450 is about 267.3013280925. The cubic root of 71450 is about 41.4954753861.

Adding to 71450 its reverse (5417), we get a palindrome (76867).

The spelling of 71450 in words is "seventy-one thousand, four hundred fifty".