1425288881 has 2 divisors, whose sum is σ = 1425288882. Its totient is φ = 1425288880.

The previous prime is 1425288827. The next prime is 1425288911. The reversal of 1425288881 is 1888825241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 995970481 + 429318400 = 31559^2 + 20720^2 .

It is an emirp because it is prime and its reverse (1888825241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425288881 is a prime.

It is a super-2 number, since 2×1425288881² = 4062896788604464322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1425288181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712644440 + 712644441.

It is an arithmetic number, because the mean of its divisors is an integer number (712644441).

Almost surely, 2^1425288881 is an apocalyptic number.

It is an amenable number.

1425288881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425288881 is an equidigital number, since it uses as much as digits as its factorization.

1425288881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 327680, while the sum is 47.

The square root of 1425288881 is about 37752.9983047704. The cubic root of 1425288881 is about 1125.3845943670.

The spelling of 1425288881 in words is "one billion, four hundred twenty-five million, two hundred eighty-eight thousand, eight hundred eighty-one".