242911477 has 2 divisors, whose sum is σ = 242911478. Its totient is φ = 242911476.

The previous prime is 242911433. The next prime is 242911481. The reversal of 242911477 is 774119242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140517316 + 102394161 = 11854^2 + 10119^2 .

It is a cyclic number.

It is not a de Polignac number, because 242911477 - 2¹⁵ = 242878709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242911177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121455738 + 121455739.

It is an arithmetic number, because the mean of its divisors is an integer number (121455739).

Almost surely, 2^242911477 is an apocalyptic number.

It is an amenable number.

242911477 is a deficient number, since it is larger than the sum of its proper divisors (1).

242911477 is an equidigital number, since it uses as much as digits as its factorization.

242911477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 37.

The square root of 242911477 is about 15585.6176329333. The cubic root of 242911477 is about 623.9493618849.

The spelling of 242911477 in words is "two hundred forty-two million, nine hundred eleven thousand, four hundred seventy-seven".