61277441 has 8 divisors (see below), whose sum is σ = 62446824. Its totient is φ = 60117120.

The previous prime is 61277431. The next prime is 61277443. The reversal of 61277441 is 14477216.

It can be written as a sum of positive squares in 4 ways, for example, as 46036225 + 15241216 = 6785^2 + 3904^2 .

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 61277441 - 2²² = 57083137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61277398 and 61277407.

It is not an unprimeable number, because it can be changed into a prime (61277443) 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, 12251 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (7805853).

Almost surely, 2^61277441 is an apocalyptic number.

It is an amenable number.

61277441 is a deficient number, since it is larger than the sum of its proper divisors (1169383).

61277441 is a wasteful number, since it uses less digits than its factorization.

61277441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531.

The product of its digits is 9408, while the sum is 32.

The square root of 61277441 is about 7827.9908661163. The cubic root of 61277441 is about 394.2456167341.

The spelling of 61277441 in words is "sixty-one million, two hundred seventy-seven thousand, four hundred forty-one".