61151589 has 12 divisors (see below), whose sum is σ = 89541036. Its totient is φ = 40208832.

The previous prime is 61151579. The next prime is 61151593. The reversal of 61151589 is 98515116.

61151589 is a `hidden beast` number, since 61 + 1 + 515 + 89 = 666.

61151589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20930625 + 40220964 = 4575^2 + 6342^2 .

It is not a de Polignac number, because 61151589 - 2¹⁵ = 61118821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61151509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45882 + ... + 47195.

It is an arithmetic number, because the mean of its divisors is an integer number (7461753).

Almost surely, 2^61151589 is an apocalyptic number.

It is an amenable number.

61151589 is a deficient number, since it is larger than the sum of its proper divisors (28389447).

61151589 is a wasteful number, since it uses less digits than its factorization.

61151589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93156 (or 93153 counting only the distinct ones).

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

The square root of 61151589 is about 7819.9481456081. The cubic root of 61151589 is about 393.9755303587.

The spelling of 61151589 in words is "sixty-one million, one hundred fifty-one thousand, five hundred eighty-nine".