61141577 has 4 divisors (see below), whose sum is σ = 69876096. Its totient is φ = 52407060.

The previous prime is 61141559. The next prime is 61141627. The reversal of 61141577 is 77514116.

61141577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61141577 - 2¹⁴ = 61125193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61141547) 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 3 ways as a sum of consecutive naturals, for example, 4367249 + ... + 4367262.

It is an arithmetic number, because the mean of its divisors is an integer number (17469024).

Almost surely, 2^61141577 is an apocalyptic number.

It is an amenable number.

61141577 is a deficient number, since it is larger than the sum of its proper divisors (8734519).

61141577 is an equidigital number, since it uses as much as digits as its factorization.

61141577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734518.

The product of its digits is 5880, while the sum is 32.

The square root of 61141577 is about 7819.3079617061. The cubic root of 61141577 is about 393.9540280649.

The spelling of 61141577 in words is "sixty-one million, one hundred forty-one thousand, five hundred seventy-seven".