1331534425 has 24 divisors (see below), whose sum is σ = 1783385856. Its totient is φ = 980370240.

The previous prime is 1331534339. The next prime is 1331534437. The reversal of 1331534425 is 5244351331.

It is not a de Polignac number, because 1331534425 - 2⁷ = 1331534297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106872 + ... + 118678.

It is an arithmetic number, because the mean of its divisors is an integer number (74307744).

Almost surely, 2^1331534425 is an apocalyptic number.

It is an amenable number.

1331534425 is a deficient number, since it is larger than the sum of its proper divisors (451851431).

1331534425 is a wasteful number, since it uses less digits than its factorization.

1331534425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12177 (or 12172 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 1331534425 is about 36490.1962861259. The cubic root of 1331534425 is about 1100.1472048177.

Adding to 1331534425 its reverse (5244351331), we get a palindrome (6575885756).

The spelling of 1331534425 in words is "one billion, three hundred thirty-one million, five hundred thirty-four thousand, four hundred twenty-five".