71425152 has 120 divisors (see below), whose sum is σ = 215151915. Its totient is φ = 23521536.

The previous prime is 71425103. The next prime is 71425163. The reversal of 71425152 is 25152417.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

71425152 is a `hidden beast` number, since 7 + 142 + 515 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35712576 + 35712576 = 5976^2 + 5976^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5976.

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

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 860503 + ... + 860585.

Almost surely, 2^71425152 is an apocalyptic number.

71425152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71425152

71425152 is an abundant number, since it is smaller than the sum of its proper divisors (143726763).

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

71425152 is an frugal number, since it uses more digits than its factorization.

71425152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 88 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 71425152 is about 8451.3402487416. The cubic root of 71425152 is about 414.9066456682.

Adding to 71425152 its reverse (25152417), we get a palindrome (96577569).

The spelling of 71425152 in words is "seventy-one million, four hundred twenty-five thousand, one hundred fifty-two".