61140726 has 12 divisors (see below), whose sum is σ = 132471612. Its totient is φ = 20380236.

The previous prime is 61140719. The next prime is 61140733. The reversal of 61140726 is 62704116.

61140726 is a `hidden beast` number, since 611 + 40 + 7 + 2 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (61140719) and next prime (61140733).

It is a self number, because there is not a number n which added to its sum of digits gives 61140726.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1698336 + ... + 1698371.

It is an arithmetic number, because the mean of its divisors is an integer number (11039301).

Almost surely, 2^61140726 is an apocalyptic number.

61140726 is an abundant number, since it is smaller than the sum of its proper divisors (71330886).

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

61140726 is a wasteful number, since it uses less digits than its factorization.

61140726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396715 (or 3396712 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 61140726 is about 7819.2535449364. The cubic root of 61140726 is about 393.9522003046.

The spelling of 61140726 in words is "sixty-one million, one hundred forty thousand, seven hundred twenty-six".