1133661225 has 24 divisors (see below), whose sum is σ = 1877245920. Its totient is φ = 603675520.

The previous prime is 1133661211. The next prime is 1133661229. The reversal of 1133661225 is 5221663311.

It is not a de Polignac number, because 1133661225 - 2⁶ = 1133661161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133661192 and 1133661201.

It is not an unprimeable number, because it can be changed into a prime (1133661229) 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, 37957 + ... + 60893.

It is an arithmetic number, because the mean of its divisors is an integer number (78218580).

Almost surely, 2^1133661225 is an apocalyptic number.

1133661225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1133661225 is a deficient number, since it is larger than the sum of its proper divisors (743584695).

1133661225 is a wasteful number, since it uses less digits than its factorization.

1133661225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23609 (or 23604 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 1133661225 is about 33669.8860259431. The cubic root of 1133661225 is about 1042.7041391263.

The spelling of 1133661225 in words is "one billion, one hundred thirty-three million, six hundred sixty-one thousand, two hundred twenty-five".