1425665361 has 8 divisors (see below), whose sum is σ = 2000933920. Its totient is φ = 900420192.

The previous prime is 1425665309. The next prime is 1425665383. The reversal of 1425665361 is 1635665241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1425665361 - 2¹⁴ = 1425648977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425665261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12505780 + ... + 12505893.

It is an arithmetic number, because the mean of its divisors is an integer number (250116740).

Almost surely, 2^1425665361 is an apocalyptic number.

It is an amenable number.

1425665361 is a deficient number, since it is larger than the sum of its proper divisors (575268559).

1425665361 is a wasteful number, since it uses less digits than its factorization.

1425665361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25011695.

The product of its digits is 129600, while the sum is 39.

The square root of 1425665361 is about 37757.9840695978. The cubic root of 1425665361 is about 1125.4836731102.

The spelling of 1425665361 in words is "one billion, four hundred twenty-five million, six hundred sixty-five thousand, three hundred sixty-one".