1151511025 has 24 divisors (see below), whose sum is σ = 1665171200. Its totient is φ = 789601680.

The previous prime is 1151511007. The next prime is 1151511029. The reversal of 1151511025 is 5201151511.

It is not a de Polignac number, because 1151511025 - 2⁷ = 1151510897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1151510987 and 1151511005.

It is not an unprimeable number, because it can be changed into a prime (1151511029) 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, 58569 + ... + 75718.

Almost surely, 2^1151511025 is an apocalyptic number.

It is an amenable number.

1151511025 is a deficient number, since it is larger than the sum of its proper divisors (513660175).

1151511025 is an equidigital number, since it uses as much as digits as its factorization.

1151511025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134318 (or 134299 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 22.

The square root of 1151511025 is about 33933.9214503718. The cubic root of 1151511025 is about 1048.1482175936.

Adding to 1151511025 its reverse (5201151511), we get a palindrome (6352662536).

The spelling of 1151511025 in words is "one billion, one hundred fifty-one million, five hundred eleven thousand, twenty-five".