1153126065 has 192 divisors, whose sum is σ = 2537256960. Its totient is φ = 441262080.

The previous prime is 1153126063. The next prime is 1153126067. The reversal of 1153126065 is 5606213511.

1153126065 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1153126063) and next prime (1153126067).

It is not a de Polignac number, because 1153126065 - 2¹ = 1153126063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1153126063) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5035371 + ... + 5035599.

It is an arithmetic number, because the mean of its divisors is an integer number (13214880).

Almost surely, 2^1153126065 is an apocalyptic number.

1153126065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1153126065 is an abundant number, since it is smaller than the sum of its proper divisors (1384130895).

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

1153126065 is a wasteful number, since it uses less digits than its factorization.

1153126065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1153126065 is about 33957.7099492884. The cubic root of 1153126065 is about 1048.6380118639.

Adding to 1153126065 its reverse (5606213511), we get a palindrome (6759339576).

The spelling of 1153126065 in words is "one billion, one hundred fifty-three million, one hundred twenty-six thousand, sixty-five".