1425544966 has 4 divisors (see below), whose sum is σ = 2138317452. Its totient is φ = 712772482.

The previous prime is 1425544943. The next prime is 1425544969. The reversal of 1425544966 is 6694455241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6694455241 = 229 ⋅29233429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425544969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356386240 + ... + 356386243.

It is an arithmetic number, because the mean of its divisors is an integer number (534579363).

Almost surely, 2^1425544966 is an apocalyptic number.

1425544966 is a deficient number, since it is larger than the sum of its proper divisors (712772486).

1425544966 is an equidigital number, since it uses as much as digits as its factorization.

1425544966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712772485.

The product of its digits is 1036800, while the sum is 46.

The square root of 1425544966 is about 37756.3897373676. The cubic root of 1425544966 is about 1125.4519904950.

The spelling of 1425544966 in words is "one billion, four hundred twenty-five million, five hundred forty-four thousand, nine hundred sixty-six".