71201450 has 24 divisors (see below), whose sum is σ = 132764940. Its totient is φ = 28409600.

The previous prime is 71201441. The next prime is 71201453. The reversal of 71201450 is 5410217.

It can be written as a sum of positive squares in 6 ways, for example, as 36638809 + 34562641 = 6053^2 + 5879^2 .

It is not an unprimeable number, because it can be changed into a prime (71201453) 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, 21506 + ... + 24594.

Almost surely, 2^71201450 is an apocalyptic number.

71201450 is a deficient number, since it is larger than the sum of its proper divisors (61563490).

71201450 is a wasteful number, since it uses less digits than its factorization.

71201450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 71201450 is about 8438.0951641943. The cubic root of 71201450 is about 414.4730331780.

Adding to 71201450 its reverse (5410217), we get a palindrome (76611667).

The spelling of 71201450 in words is "seventy-one million, two hundred one thousand, four hundred fifty".