1425469469 has 4 divisors (see below), whose sum is σ = 1425755100. Its totient is φ = 1425183840.

The previous prime is 1425469429. The next prime is 1425469477. The reversal of 1425469469 is 9649645241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 593896900 + 831572569 = 24370^2 + 28837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425469469 is a prime.

It is a super-2 number, since 2×1425469469² = 4063926414102283922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425469429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135194 + ... + 145355.

It is an arithmetic number, because the mean of its divisors is an integer number (356438775).

Almost surely, 2^1425469469 is an apocalyptic number.

It is an amenable number.

1425469469 is a deficient number, since it is larger than the sum of its proper divisors (285631).

1425469469 is an equidigital number, since it uses as much as digits as its factorization.

1425469469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285630.

The product of its digits is 1866240, while the sum is 50.

The square root of 1425469469 is about 37755.3899330943. The cubic root of 1425469469 is about 1125.4321221286.

The spelling of 1425469469 in words is "one billion, four hundred twenty-five million, four hundred sixty-nine thousand, four hundred sixty-nine".