71126451 has 32 divisors (see below), whose sum is σ = 116605440. Its totient is φ = 42487200.

The previous prime is 71126449. The next prime is 71126467. The reversal of 71126451 is 15462117.

It is a happy number.

71126451 is a `hidden beast` number, since 7 + 1 + 12 + 645 + 1 = 666.

It is not a de Polignac number, because 71126451 - 2¹ = 71126449 is a prime.

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 (71126401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19401 + ... + 22773.

It is an arithmetic number, because the mean of its divisors is an integer number (3643920).

Almost surely, 2^71126451 is an apocalyptic number.

71126451 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

71126451 is a deficient number, since it is larger than the sum of its proper divisors (45478989).

71126451 is a wasteful number, since it uses less digits than its factorization.

71126451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3464 (or 3458 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 71126451 is about 8433.6499215939. The cubic root of 71126451 is about 414.3274556945.

Adding to 71126451 its reverse (15462117), we get a palindrome (86588568).

The spelling of 71126451 in words is "seventy-one million, one hundred twenty-six thousand, four hundred fifty-one".