1492289987 has 2 divisors, whose sum is σ = 1492289988. Its totient is φ = 1492289986.

The previous prime is 1492289959. The next prime is 1492289989. The reversal of 1492289987 is 7899822941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1492289987 - 2²² = 1488095683 is a prime.

Together with 1492289989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1492289989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746144993 + 746144994.

It is an arithmetic number, because the mean of its divisors is an integer number (746144994).

Almost surely, 2^1492289987 is an apocalyptic number.

1492289987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492289987 is an equidigital number, since it uses as much as digits as its factorization.

1492289987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5225472, while the sum is 59.

The square root of 1492289987 is about 38630.1693887045. The cubic root of 1492289987 is about 1142.7495922161.

The spelling of 1492289987 in words is "one billion, four hundred ninety-two million, two hundred eighty-nine thousand, nine hundred eighty-seven".