61042159 has 4 divisors (see below), whose sum is σ = 61953304. Its totient is φ = 60131016.

The previous prime is 61042141. The next prime is 61042181. The reversal of 61042159 is 95124016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61042159 - 2⁵ = 61042127 is a prime.

It is a super-2 number, since 2×61042159² = 7452290350762562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61042259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455472 + ... + 455605.

It is an arithmetic number, because the mean of its divisors is an integer number (15488326).

Almost surely, 2^61042159 is an apocalyptic number.

61042159 is a deficient number, since it is larger than the sum of its proper divisors (911145).

61042159 is an equidigital number, since it uses as much as digits as its factorization.

61042159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911144.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61042159 is about 7812.9481631456. The cubic root of 61042159 is about 393.7403852863.

The spelling of 61042159 in words is "sixty-one million, forty-two thousand, one hundred fifty-nine".