71105450 has 48 divisors (see below), whose sum is σ = 143636640. Its totient is φ = 26032320.

The previous prime is 71105449. The next prime is 71105471. The reversal of 71105450 is 5450117.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89957 + ... + 90743.

It is an arithmetic number, because the mean of its divisors is an integer number (2992430).

Almost surely, 2^71105450 is an apocalyptic number.

71105450 is an abundant number, since it is smaller than the sum of its proper divisors (72531190).

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

71105450 is a wasteful number, since it uses less digits than its factorization.

71105450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 946 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 71105450 is about 8432.4047578375. The cubic root of 71105450 is about 414.2866731760.

Adding to 71105450 its reverse (5450117), we get a palindrome (76555567).

The spelling of 71105450 in words is "seventy-one million, one hundred five thousand, four hundred fifty".