61159851 has 6 divisors (see below), whose sum is σ = 88342020. Its totient is φ = 40773228.

The previous prime is 61159817. The next prime is 61159859. The reversal of 61159851 is 15895116.

61159851 is a `hidden beast` number, since 6 + 11 + 598 + 51 = 666.

It is not a de Polignac number, because 61159851 - 2⁷ = 61159723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61159859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3397761 + ... + 3397778.

It is an arithmetic number, because the mean of its divisors is an integer number (14723670).

Almost surely, 2^61159851 is an apocalyptic number.

61159851 is a deficient number, since it is larger than the sum of its proper divisors (27182169).

61159851 is a wasteful number, since it uses less digits than its factorization.

61159851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795545 (or 6795542 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 61159851 is about 7820.4763921388. The cubic root of 61159851 is about 393.9932724937.

The spelling of 61159851 in words is "sixty-one million, one hundred fifty-nine thousand, eight hundred fifty-one".