1494140625 has 66 divisors (see below), whose sum is σ = 2856445254. Its totient is φ = 750000000.

The previous prime is 1494140597. The next prime is 1494140653. The reversal of 1494140625 is 5260414941.

1494140625 is a `hidden beast` number, since 1 + 494 + 140 + 6 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (1494140597) and next prime (1494140653).

It can be written as a sum of positive squares in 11 ways, for example, as 42302016 + 1451838609 = 6504^2 + 38103^2 .

It is not a de Polignac number, because 1494140625 - 2¹⁰ = 1494139601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1494140625.

It is an unprimeable number.

It is a polite number, since it can be written in 65 ways as a sum of consecutive naturals, for example, 87890617 + ... + 87890633.

Almost surely, 2^1494140625 is an apocalyptic number.

1494140625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1494140625 is a deficient number, since it is larger than the sum of its proper divisors (1362304629).

1494140625 is an frugal number, since it uses more digits than its factorization.

1494140625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1494140625 is about 38654.1152401656. The cubic root of 1494140625 is about 1143.2217842214.

The spelling of 1494140625 in words is "one billion, four hundred ninety-four million, one hundred forty thousand, six hundred twenty-five".