1151550513 has 12 divisors (see below), whose sum is σ = 1724956688. Its totient is φ = 767700180.

The previous prime is 1151550509. The next prime is 1151550551. The reversal of 1151550513 is 3150551511.

1151550513 is a `hidden beast` number, since 1 + 151 + 5 + 505 + 1 + 3 = 666.

It is not a de Polignac number, because 1151550513 - 2² = 1151550509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1151550503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2369203 + ... + 2369688.

Almost surely, 2^1151550513 is an apocalyptic number.

It is an amenable number.

1151550513 is a deficient number, since it is larger than the sum of its proper divisors (573406175).

1151550513 is an frugal number, since it uses more digits than its factorization.

1151550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738906 (or 4738894 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 27.

The square root of 1151550513 is about 33934.5032820579. The cubic root of 1151550513 is about 1048.1601986061.

The spelling of 1151550513 in words is "one billion, one hundred fifty-one million, five hundred fifty thousand, five hundred thirteen".