1425511120 has 40 divisors (see below), whose sum is σ = 3615616800. Its totient is φ = 518367360.

The previous prime is 1425511111. The next prime is 1425511133. The reversal of 1425511120 is 211155241.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1425511091 and 1425511100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809070 + ... + 810829.

It is an arithmetic number, because the mean of its divisors is an integer number (90390420).

Almost surely, 2^1425511120 is an apocalyptic number.

1425511120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425511120 is an abundant number, since it is smaller than the sum of its proper divisors (2190105680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1425511120 is a wasteful number, since it uses less digits than its factorization.

1425511120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619923 (or 1619917 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1425511120 is about 37755.9415191834. The cubic root of 1425511120 is about 1125.4430834102.

Adding to 1425511120 its reverse (211155241), we get a palindrome (1636666361).

The spelling of 1425511120 in words is "one billion, four hundred twenty-five million, five hundred eleven thousand, one hundred twenty".