1425575969 has 4 divisors (see below), whose sum is σ = 1425932100. Its totient is φ = 1425219840.

The previous prime is 1425575959. The next prime is 1425575981. The reversal of 1425575969 is 9695755241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9695755241 = 79 ⋅122731079.

It can be written as a sum of positive squares in 2 ways, for example, as 827137600 + 598438369 = 28760^2 + 24463^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425575969 - 2²⁴ = 1408798753 is a prime.

It is a super-2 number, since 2×1425575969² = 4064533686780577922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425575969.

It is not an unprimeable number, because it can be changed into a prime (1425575959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171992 + ... + 180089.

It is an arithmetic number, because the mean of its divisors is an integer number (356483025).

Almost surely, 2^1425575969 is an apocalyptic number.

It is an amenable number.

1425575969 is a deficient number, since it is larger than the sum of its proper divisors (356131).

1425575969 is an equidigital number, since it uses as much as digits as its factorization.

1425575969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356130.

The product of its digits is 3402000, while the sum is 53.

The square root of 1425575969 is about 37756.8003014027. The cubic root of 1425575969 is about 1125.4601492778.

The spelling of 1425575969 in words is "one billion, four hundred twenty-five million, five hundred seventy-five thousand, nine hundred sixty-nine".