1121516325 has 72 divisors (see below), whose sum is σ = 2164013280. Its totient is φ = 553392000.

The previous prime is 1121516281. The next prime is 1121516329. The reversal of 1121516325 is 5236151211.

1121516325 is a `hidden beast` number, since 1 + 1 + 21 + 5 + 1 + 632 + 5 = 666.

1121516325 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121516325 - 2⁸ = 1121516069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121516329) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 180775 + ... + 186875.

It is an arithmetic number, because the mean of its divisors is an integer number (30055740).

Almost surely, 2^1121516325 is an apocalyptic number.

1121516325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121516325 is a deficient number, since it is larger than the sum of its proper divisors (1042496955).

1121516325 is a wasteful number, since it uses less digits than its factorization.

1121516325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179 (or 6171 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 1121516325 is about 33489.0478365689. The cubic root of 1121516325 is about 1038.9672702557.

Adding to 1121516325 its reverse (5236151211), we get a palindrome (6357667536).

The spelling of 1121516325 in words is "one billion, one hundred twenty-one million, five hundred sixteen thousand, three hundred twenty-five".