61125361 has 4 divisors (see below), whose sum is σ = 66682224. Its totient is φ = 55568500.

The previous prime is 61125349. The next prime is 61125401. The reversal of 61125361 is 16352116.

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 61125361 - 2⁹ = 61124849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61125331) 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, 2778415 + ... + 2778436.

It is an arithmetic number, because the mean of its divisors is an integer number (16670556).

Almost surely, 2^61125361 is an apocalyptic number.

It is an amenable number.

61125361 is a deficient number, since it is larger than the sum of its proper divisors (5556863).

61125361 is a wasteful number, since it uses less digits than its factorization.

61125361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556862.

The product of its digits is 1080, while the sum is 25.

The square root of 61125361 is about 7818.2709725361. The cubic root of 61125361 is about 393.9191967565.

Adding to 61125361 its reverse (16352116), we get a palindrome (77477477).

The spelling of 61125361 in words is "sixty-one million, one hundred twenty-five thousand, three hundred sixty-one".