1151143505 has 32 divisors (see below), whose sum is σ = 1447193088. Its totient is φ = 878342400.

The previous prime is 1151143463. The next prime is 1151143507. The reversal of 1151143505 is 5053411511.

It is not a de Polignac number, because 1151143505 - 2¹⁰ = 1151142481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151143507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1877579 + ... + 1878191.

It is an arithmetic number, because the mean of its divisors is an integer number (45224784).

Almost surely, 2^1151143505 is an apocalyptic number.

It is an amenable number.

1151143505 is a deficient number, since it is larger than the sum of its proper divisors (296049583).

1151143505 is a wasteful number, since it uses less digits than its factorization.

1151143505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1151143505 is about 33928.5057879064. The cubic root of 1151143505 is about 1048.0366955980.

The spelling of 1151143505 in words is "one billion, one hundred fifty-one million, one hundred forty-three thousand, five hundred five".