225147977 has 2 divisors, whose sum is σ = 225147978. Its totient is φ = 225147976.

The previous prime is 225147941. The next prime is 225148019. The reversal of 225147977 is 779741522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176650681 + 48497296 = 13291^2 + 6964^2 .

It is a cyclic number.

It is not a de Polignac number, because 225147977 - 2¹⁰ = 225146953 is a prime.

It is a super-2 number, since 2×225147977² = 101383223094385058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (225147917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112573988 + 112573989.

It is an arithmetic number, because the mean of its divisors is an integer number (112573989).

Almost surely, 2^225147977 is an apocalyptic number.

It is an amenable number.

225147977 is a deficient number, since it is larger than the sum of its proper divisors (1).

225147977 is an equidigital number, since it uses as much as digits as its factorization.

225147977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 44.

The square root of 225147977 is about 15004.9317559261. The cubic root of 225147977 is about 608.3535075230.

The spelling of 225147977 in words is "two hundred twenty-five million, one hundred forty-seven thousand, nine hundred seventy-seven".