1131624325 has 24 divisors (see below), whose sum is σ = 1590696800. Its totient is φ = 791674560.

The previous prime is 1131624323. The next prime is 1131624349. The reversal of 1131624325 is 5234261311.

It is not a de Polignac number, because 1131624325 - 2¹ = 1131624323 is a prime.

It is a super-2 number, since 2×1131624325² = 2561147225863411250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131624293 and 1131624302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131624323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85455 + ... + 97804.

Almost surely, 2^1131624325 is an apocalyptic number.

It is an amenable number.

1131624325 is a deficient number, since it is larger than the sum of its proper divisors (459072475).

1131624325 is a wasteful number, since it uses less digits than its factorization.

1131624325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183301 (or 183296 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1131624325 is about 33639.6243290558. The cubic root of 1131624325 is about 1042.0792736281.

Adding to 1131624325 its reverse (5234261311), we get a palindrome (6365885636).

The spelling of 1131624325 in words is "one billion, one hundred thirty-one million, six hundred twenty-four thousand, three hundred twenty-five".