71450211 has 32 divisors (see below), whose sum is σ = 111449088. Its totient is φ = 39876480.

The previous prime is 71450209. The next prime is 71450221. The reversal of 71450211 is 11205417.

It is a happy number.

It is not a de Polignac number, because 71450211 - 2¹ = 71450209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (71450221) 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, 257805 + ... + 258081.

It is an arithmetic number, because the mean of its divisors is an integer number (3482784).

Almost surely, 2^71450211 is an apocalyptic number.

71450211 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

71450211 is a deficient number, since it is larger than the sum of its proper divisors (39998877).

71450211 is a wasteful number, since it uses less digits than its factorization.

71450211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 71450211 is about 8452.8226646488. The cubic root of 71450211 is about 414.9551623305.

Adding to 71450211 its reverse (11205417), we get a palindrome (82655628).

The spelling of 71450211 in words is "seventy-one million, four hundred fifty thousand, two hundred eleven".