61361943 has 8 divisors (see below), whose sum is σ = 81916800. Its totient is φ = 40857528.

The previous prime is 61361939. The next prime is 61361977. The reversal of 61361943 is 34916316.

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

It is not a de Polignac number, because 61361943 - 2² = 61361939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61361243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9673 + ... + 14706.

It is an arithmetic number, because the mean of its divisors is an integer number (10239600).

Almost surely, 2^61361943 is an apocalyptic number.

61361943 is a deficient number, since it is larger than the sum of its proper divisors (20554857).

61361943 is a wasteful number, since it uses less digits than its factorization.

61361943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25221.

The product of its digits is 11664, while the sum is 33.

The square root of 61361943 is about 7833.3864324441. The cubic root of 61361943 is about 394.4267559408.

The spelling of 61361943 in words is "sixty-one million, three hundred sixty-one thousand, nine hundred forty-three".