1121777325 has 36 divisors (see below), whose sum is σ = 2043306720. Its totient is φ = 588133920.

The previous prime is 1121777323. The next prime is 1121777357. The reversal of 1121777325 is 5237771211.

It is a happy number.

It is not a de Polignac number, because 1121777325 - 2¹ = 1121777323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121777325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121777323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28977 + ... + 55526.

It is an arithmetic number, because the mean of its divisors is an integer number (56758520).

Almost surely, 2^1121777325 is an apocalyptic number.

1121777325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121777325 is a deficient number, since it is larger than the sum of its proper divisors (921529395).

1121777325 is a wasteful number, since it uses less digits than its factorization.

1121777325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84578 (or 84570 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 1121777325 is about 33492.9444062477. The cubic root of 1121777325 is about 1039.0478603813.

The spelling of 1121777325 in words is "one billion, one hundred twenty-one million, seven hundred seventy-seven thousand, three hundred twenty-five".