1612039243 has 2 divisors, whose sum is σ = 1612039244. Its totient is φ = 1612039242.

The previous prime is 1612039223. The next prime is 1612039267. The reversal of 1612039243 is 3429302161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1612039243 - 2⁹ = 1612038731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1612039213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806019621 + 806019622.

It is an arithmetic number, because the mean of its divisors is an integer number (806019622).

Almost surely, 2^1612039243 is an apocalyptic number.

1612039243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612039243 is an equidigital number, since it uses as much as digits as its factorization.

1612039243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1612039243 is about 40150.2085050626. The cubic root of 1612039243 is about 1172.5333479634.

The spelling of 1612039243 in words is "one billion, six hundred twelve million, thirty-nine thousand, two hundred forty-three".