1492985609 has 2 divisors, whose sum is σ = 1492985610. Its totient is φ = 1492985608.

The previous prime is 1492985537. The next prime is 1492985617. The reversal of 1492985609 is 9065892941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832495609 + 660490000 = 28853^2 + 25700^2 .

It is a cyclic number.

It is not a de Polignac number, because 1492985609 - 2¹² = 1492981513 is a prime.

It is a super-2 number, since 2×1492985609² = 4458012057362201762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1492985009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746492804 + 746492805.

It is an arithmetic number, because the mean of its divisors is an integer number (746492805).

Almost surely, 2^1492985609 is an apocalyptic number.

It is an amenable number.

1492985609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1492985609 is an equidigital number, since it uses as much as digits as its factorization.

1492985609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The square root of 1492985609 is about 38639.1719502372. The cubic root of 1492985609 is about 1142.9271265827.

The spelling of 1492985609 in words is "one billion, four hundred ninety-two million, nine hundred eighty-five thousand, six hundred nine".