1494054409 has 3 divisors (see below), whose sum is σ = 1494093063. Its totient is φ = 1494015756.

The previous prime is 1494054383. The next prime is 1494054433. The reversal of 1494054409 is 9044504941.

The square root of 1494054409 is 38653.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 127125625 + 1366928784 = 11275^2 + 36972^2 .

It is not a de Polignac number, because 1494054409 - 2¹⁷ = 1493923337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1494064409) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19327 + ... + 57979.

It is an arithmetic number, because the mean of its divisors is an integer number (498031021).

Almost surely, 2^1494054409 is an apocalyptic number.

1494054409 is the 38653-rd square number.

1494054409 is the 19327-th centered octagonal number.

It is an amenable number.

1494054409 is a deficient number, since it is larger than the sum of its proper divisors (38654).

1494054409 is an frugal number, since it uses more digits than its factorization.

1494054409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77306 (or 38653 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The cubic root of 1494054409 is about 1143.1997947906.

The spelling of 1494054409 in words is "one billion, four hundred ninety-four million, fifty-four thousand, four hundred nine".