71150461 has 4 divisors (see below), whose sum is σ = 72316924. Its totient is φ = 69984000.

The previous prime is 71150419. The next prime is 71150467. The reversal of 71150461 is 16405117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16405117 = 2731 ⋅6007.

It can be written as a sum of positive squares in 2 ways, for example, as 41925625 + 29224836 = 6475^2 + 5406^2 .

It is a 7-Lehmer number, since φ(71150461) divides (71150461-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 71150461 - 2¹⁵ = 71117693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71150467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583140 + ... + 583261.

It is an arithmetic number, because the mean of its divisors is an integer number (18079231).

Almost surely, 2^71150461 is an apocalyptic number.

It is an amenable number.

71150461 is a deficient number, since it is larger than the sum of its proper divisors (1166463).

71150461 is a wasteful number, since it uses less digits than its factorization.

71150461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166462.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 71150461 is about 8435.0732658347. The cubic root of 71150461 is about 414.3740716530.

Adding to 71150461 its reverse (16405117), we get a palindrome (87555578).

It can be divided in two parts, 711504 and 61, that multiplied together give a square (43401744 = 6588²).

The spelling of 71150461 in words is "seventy-one million, one hundred fifty thousand, four hundred sixty-one".