1492009 has 2 divisors, whose sum is σ = 1492010. Its totient is φ = 1492008.

The previous prime is 1491991. The next prime is 1492019. The reversal of 1492009 is 9002941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1315609 + 176400 = 1147^2 + 420^2 .

It is a cyclic number.

It is not a de Polignac number, because 1492009 - 2⁵ = 1491977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1492019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746004 + 746005.

It is an arithmetic number, because the mean of its divisors is an integer number (746005).

2^1492009 is an apocalyptic number.

It is an amenable number.

1492009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492009 is an equidigital number, since it uses as much as digits as its factorization.

1492009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1492009 is about 1221.4782028346. The cubic root of 1492009 is about 114.2677863991.

The spelling of 1492009 in words is "one million, four hundred ninety-two thousand, nine".