61043155 has 16 divisors (see below), whose sum is σ = 75688704. Its totient is φ = 47226240.

The previous prime is 61043149. The next prime is 61043183. The reversal of 61043155 is 55134016.

It is not a de Polignac number, because 61043155 - 2⁹ = 61042643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32574 + ... + 34396.

It is an arithmetic number, because the mean of its divisors is an integer number (4730544).

Almost surely, 2^61043155 is an apocalyptic number.

61043155 is a deficient number, since it is larger than the sum of its proper divisors (14645549).

61043155 is a wasteful number, since it uses less digits than its factorization.

61043155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 61043155 is about 7813.0119032291. The cubic root of 61043155 is about 393.7425267751.

The spelling of 61043155 in words is "sixty-one million, forty-three thousand, one hundred fifty-five".