71454312 has 40 divisors (see below), whose sum is σ = 200140050. Its totient is φ = 23817888.

The previous prime is 71454277. The next prime is 71454319. The reversal of 71454312 is 21345417.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 27815076 = 6606^2 + 5274^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (71454319) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 54487 + ... + 55782.

Almost surely, 2^71454312 is an apocalyptic number.

71454312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71454312 is an abundant number, since it is smaller than the sum of its proper divisors (128685738).

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

71454312 is a wasteful number, since it uses less digits than its factorization.

71454312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110287 (or 110274 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 71454312 is about 8453.0652428572. The cubic root of 71454312 is about 414.9631011854.

Adding to 71454312 its reverse (21345417), we get a palindrome (92799729).

The spelling of 71454312 in words is "seventy-one million, four hundred fifty-four thousand, three hundred twelve".