1425302779 has 8 divisors (see below), whose sum is σ = 1475990912. Its totient is φ = 1374909120.

The previous prime is 1425302761. The next prime is 1425302783. The reversal of 1425302779 is 9772035241.

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

It is a cyclic number.

It is not a de Polignac number, because 1425302779 - 2⁹ = 1425302267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425302719) 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, 63744 + ... + 83149.

It is an arithmetic number, because the mean of its divisors is an integer number (184498864).

Almost surely, 2^1425302779 is an apocalyptic number.

1425302779 is a deficient number, since it is larger than the sum of its proper divisors (50688133).

1425302779 is a wasteful number, since it uses less digits than its factorization.

1425302779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147237.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1425302779 is about 37753.1823691725. The cubic root of 1425302779 is about 1125.3882522323.

The spelling of 1425302779 in words is "one billion, four hundred twenty-five million, three hundred two thousand, seven hundred seventy-nine".