61144266 has 16 divisors (see below), whose sum is σ = 122829984. Its totient is φ = 20291184.

The previous prime is 61144253. The next prime is 61144297. The reversal of 61144266 is 66244116.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21085 + ... + 23808.

It is an arithmetic number, because the mean of its divisors is an integer number (7676874).

Almost surely, 2^61144266 is an apocalyptic number.

61144266 is an abundant number, since it is smaller than the sum of its proper divisors (61685718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61144266 is a wasteful number, since it uses less digits than its factorization.

61144266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45125.

The product of its digits is 6912, while the sum is 30.

The square root of 61144266 is about 7819.4799059784. The cubic root of 61144266 is about 393.9598033322.

The spelling of 61144266 in words is "sixty-one million, one hundred forty-four thousand, two hundred sixty-six".