1425842477 has 4 divisors (see below), whose sum is σ = 1447123776. Its totient is φ = 1404561180.

The previous prime is 1425842459. The next prime is 1425842491. The reversal of 1425842477 is 7742485241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1425842477 - 2⁶ = 1425842413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425842437) 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, 10640549 + ... + 10640682.

It is an arithmetic number, because the mean of its divisors is an integer number (361780944).

Almost surely, 2^1425842477 is an apocalyptic number.

It is an amenable number.

1425842477 is a deficient number, since it is larger than the sum of its proper divisors (21281299).

1425842477 is an equidigital number, since it uses as much as digits as its factorization.

1425842477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21281298.

The product of its digits is 501760, while the sum is 44.

The square root of 1425842477 is about 37760.3294079911. The cubic root of 1425842477 is about 1125.5302789308.

The spelling of 1425842477 in words is "one billion, four hundred twenty-five million, eight hundred forty-two thousand, four hundred seventy-seven".