61277 has 4 divisors (see below), whose sum is σ = 63420. Its totient is φ = 59136.

The previous prime is 61261. The next prime is 61283. The reversal of 61277 is 77216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10201 + 51076 = 101^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 61277 - 2⁴ = 61261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 61277.

It is not an unprimeable number, because it can be changed into a prime (61297) 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, 1028 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (15855).

2⁶¹²⁷⁷ is an apocalyptic number.

It is an amenable number.

61277 is a deficient number, since it is larger than the sum of its proper divisors (2143).

61277 is a wasteful number, since it uses less digits than its factorization.

61277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142.

The product of its digits is 588, while the sum is 23.

The square root of 61277 is about 247.5419156426. The cubic root of 61277 is about 39.4244670966.

The spelling of 61277 in words is "sixty-one thousand, two hundred seventy-seven".