61133741 has 4 divisors (see below), whose sum is σ = 61167612. Its totient is φ = 61099872.

The previous prime is 61133713. The next prime is 61133749. The reversal of 61133741 is 14733116.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51179716 + 9954025 = 7154^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 61133741 - 2¹⁸ = 60871597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61133741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61133749) 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, 14066 + ... + 17891.

It is an arithmetic number, because the mean of its divisors is an integer number (15291903).

Almost surely, 2^61133741 is an apocalyptic number.

It is an amenable number.

61133741 is a deficient number, since it is larger than the sum of its proper divisors (33871).

61133741 is a wasteful number, since it uses less digits than its factorization.

61133741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33870.

The product of its digits is 1512, while the sum is 26.

The square root of 61133741 is about 7818.8068782903. The cubic root of 61133741 is about 393.9371974247.

Adding to 61133741 its reverse (14733116), we get a palindrome (75866857).

The spelling of 61133741 in words is "sixty-one million, one hundred thirty-three thousand, seven hundred forty-one".