71434100 has 18 divisors (see below), whose sum is σ = 155012214. Its totient is φ = 28573600.

The previous prime is 71434093. The next prime is 71434109. The reversal of 71434100 is 143417.

It can be written as a sum of positive squares in 3 ways, for example, as 234256 + 71199844 = 484^2 + 8438^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71434109) 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, 357071 + ... + 357270.

Almost surely, 2^71434100 is an apocalyptic number.

It is an amenable number.

71434100 is an abundant number, since it is smaller than the sum of its proper divisors (83578114).

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

71434100 is a wasteful number, since it uses less digits than its factorization.

71434100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714355 (or 714348 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 71434100 is about 8451.8696156531. The cubic root of 71434100 is about 414.9239711692.

Adding to 71434100 its reverse (143417), we get a palindrome (71577517).

The spelling of 71434100 in words is "seventy-one million, four hundred thirty-four thousand, one hundred".