242022947 has 2 divisors, whose sum is σ = 242022948. Its totient is φ = 242022946.

The previous prime is 242022943. The next prime is 242023027. The reversal of 242022947 is 749220242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242022947 - 2² = 242022943 is a prime.

It is not a weakly prime, because it can be changed into another prime (242022943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121011473 + 121011474.

It is an arithmetic number, because the mean of its divisors is an integer number (121011474).

Almost surely, 2^242022947 is an apocalyptic number.

242022947 is a deficient number, since it is larger than the sum of its proper divisors (1).

242022947 is an equidigital number, since it uses as much as digits as its factorization.

242022947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 242022947 is about 15557.0867131349. The cubic root of 242022947 is about 623.1876645574.

The spelling of 242022947 in words is "two hundred forty-two million, twenty-two thousand, nine hundred forty-seven".