1494142969 has 6 divisors (see below), whose sum is σ = 1642322570. Its totient is φ = 1358311680.

The previous prime is 1494142921. The next prime is 1494142987. The reversal of 1494142969 is 9692414941.

It can be written as a sum of positive squares in only one way, i.e., 1412782569 + 81360400 = 37587^2 + 9020^2 .

It is not a de Polignac number, because 1494142969 - 2²⁷ = 1359925241 is a prime.

It is a super-2 number, since 2×1494142969² = 4464926423624269922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1494148969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6174024 + ... + 6174265.

Almost surely, 2^1494142969 is an apocalyptic number.

It is an amenable number.

1494142969 is a deficient number, since it is larger than the sum of its proper divisors (148179601).

1494142969 is a wasteful number, since it uses less digits than its factorization.

1494142969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348311 (or 12348300 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 1494142969 is about 38654.1455603406. The cubic root of 1494142969 is about 1143.2223820478. Note that the first 3 decimals are identical.

The spelling of 1494142969 in words is "one billion, four hundred ninety-four million, one hundred forty-two thousand, nine hundred sixty-nine".