61534071 has 24 divisors (see below), whose sum is σ = 93531984. Its totient is φ = 38931840.

The previous prime is 61534051. The next prime is 61534079. The reversal of 61534071 is 17043516.

61534071 is a `hidden beast` number, since 61 + 534 + 0 + 71 = 666.

It is not a de Polignac number, because 61534071 - 2⁷ = 61533943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61534079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11400 + ... + 15906.

It is an arithmetic number, because the mean of its divisors is an integer number (3897166).

Almost surely, 2^61534071 is an apocalyptic number.

61534071 is a deficient number, since it is larger than the sum of its proper divisors (31997913).

61534071 is a wasteful number, since it uses less digits than its factorization.

61534071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 61534071 is about 7844.3655575196. The cubic root of 61534071 is about 394.7952172504.

Adding to 61534071 its reverse (17043516), we get a palindrome (78577587).

The spelling of 61534071 in words is "sixty-one million, five hundred thirty-four thousand, seventy-one".