61278341 has 4 divisors (see below), whose sum is σ = 61396032. Its totient is φ = 61160652.

The previous prime is 61278307. The next prime is 61278377. The reversal of 61278341 is 14387216.

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 61278341 - 2⁶ = 61278277 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61278298 and 61278307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61278241) 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 3 ways as a sum of consecutive naturals, for example, 58061 + ... + 59106.

It is an arithmetic number, because the mean of its divisors is an integer number (15349008).

Almost surely, 2^61278341 is an apocalyptic number.

It is an amenable number.

61278341 is a deficient number, since it is larger than the sum of its proper divisors (117691).

61278341 is a wasteful number, since it uses less digits than its factorization.

61278341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117690.

The product of its digits is 8064, while the sum is 32.

The square root of 61278341 is about 7828.0483519202. The cubic root of 61278341 is about 394.2475468588.

The spelling of 61278341 in words is "sixty-one million, two hundred seventy-eight thousand, three hundred forty-one".