5181977 has 2 divisors, whose sum is σ = 5181978. Its totient is φ = 5181976.

The previous prime is 5181971. The next prime is 5181983. The reversal of 5181977 is 7791815.

It is a balanced prime because it is at equal distance from previous prime (5181971) and next prime (5181983).

It can be written as a sum of positive squares in only one way, i.e., 4426816 + 755161 = 2104^2 + 869^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181977 - 2⁸ = 5181721 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5181977.

It is not a weakly prime, because it can be changed into another prime (5181971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590988 + 2590989.

It is an arithmetic number, because the mean of its divisors is an integer number (2590989).

Almost surely, 2^5181977 is an apocalyptic number.

It is an amenable number.

5181977 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181977 is an equidigital number, since it uses as much as digits as its factorization.

5181977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 38.

The square root of 5181977 is about 2276.3956158805. The cubic root of 5181977 is about 173.0474326152.

It can be divided in two parts, 51 and 81977, that added together give a palindrome (82028).

The spelling of 5181977 in words is "five million, one hundred eighty-one thousand, nine hundred seventy-seven".