61911361 has 8 divisors (see below), whose sum is σ = 64122624. Its totient is φ = 59737440.

The previous prime is 61911349. The next prime is 61911391. The reversal of 61911361 is 16311916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61911361 - 2¹⁷ = 61780289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61911301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5940 + ... + 12613.

It is an arithmetic number, because the mean of its divisors is an integer number (8015328).

Almost surely, 2^61911361 is an apocalyptic number.

It is an amenable number.

61911361 is a deficient number, since it is larger than the sum of its proper divisors (2211263).

61911361 is a wasteful number, since it uses less digits than its factorization.

61911361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18671.

The product of its digits is 972, while the sum is 28.

The square root of 61911361 is about 7868.3772787024. The cubic root of 61911361 is about 395.6004561973.

The spelling of 61911361 in words is "sixty-one million, nine hundred eleven thousand, three hundred sixty-one".