242321977 has 2 divisors, whose sum is σ = 242321978. Its totient is φ = 242321976.

The previous prime is 242321929. The next prime is 242321983. The reversal of 242321977 is 779123242.

242321977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225870841 + 16451136 = 15029^2 + 4056^2 .

It is a cyclic number.

It is not a de Polignac number, because 242321977 - 2²³ = 233933369 is a prime.

It is not a weakly prime, because it can be changed into another prime (242321987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121160988 + 121160989.

It is an arithmetic number, because the mean of its divisors is an integer number (121160989).

Almost surely, 2^242321977 is an apocalyptic number.

It is an amenable number.

242321977 is a deficient number, since it is larger than the sum of its proper divisors (1).

242321977 is an equidigital number, since it uses as much as digits as its factorization.

242321977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 242321977 is about 15566.6944789188. The cubic root of 242321977 is about 623.4442175188. Note that the first 3 decimals are identical.

The spelling of 242321977 in words is "two hundred forty-two million, three hundred twenty-one thousand, nine hundred seventy-seven".