1145540025 has 36 divisors (see below), whose sum is σ = 2344905472. Its totient is φ = 523674720.

The previous prime is 1145540009. The next prime is 1145540051. The reversal of 1145540025 is 5200455411.

1145540025 is a `hidden beast` number, since 114 + 5 + 540 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 1145540025 - 2⁴ = 1145540009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 362089 + ... + 365238.

Almost surely, 2^1145540025 is an apocalyptic number.

1145540025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1145540025 is an abundant number, since it is smaller than the sum of its proper divisors (1199365447).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145540025 is a wasteful number, since it uses less digits than its factorization.

1145540025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727350 (or 727342 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1145540025 is about 33845.8272908198. The cubic root of 1145540025 is about 1046.3334016239. Note that the first 3 decimals are identical.

Adding to 1145540025 its reverse (5200455411), we get a palindrome (6345995436).

The spelling of 1145540025 in words is "one billion, one hundred forty-five million, five hundred forty thousand, twenty-five".