1151512505 has 32 divisors (see below), whose sum is σ = 1631750400. Its totient is φ = 769063680.

The previous prime is 1151512501. The next prime is 1151512507. The reversal of 1151512505 is 5052151511.

It is not a de Polignac number, because 1151512505 - 2² = 1151512501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151512501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138239 + ... + 146331.

It is an arithmetic number, because the mean of its divisors is an integer number (50992200).

Almost surely, 2^1151512505 is an apocalyptic number.

It is an amenable number.

1151512505 is a deficient number, since it is larger than the sum of its proper divisors (480237895).

1151512505 is a wasteful number, since it uses less digits than its factorization.

1151512505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8321.

The product of its (nonzero) digits is 1250, while the sum is 26.

The square root of 1151512505 is about 33933.9432574524. The cubic root of 1151512505 is about 1048.1486666438.

The spelling of 1151512505 in words is "one billion, one hundred fifty-one million, five hundred twelve thousand, five hundred five".