1156816051 has 8 divisors (see below), whose sum is σ = 1225616400. Its totient is φ = 1088099328.

The previous prime is 1156816043. The next prime is 1156816091. The reversal of 1156816051 is 1506186511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1156816051 - 2³ = 1156816043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1156815998 and 1156816016.

It is not an unprimeable number, because it can be changed into a prime (1156816021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8800 + ... + 48898.

It is an arithmetic number, because the mean of its divisors is an integer number (153202050).

Almost surely, 2^1156816051 is an apocalyptic number.

1156816051 is a deficient number, since it is larger than the sum of its proper divisors (68800349).

1156816051 is a wasteful number, since it uses less digits than its factorization.

1156816051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41813.

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1156816051 is about 34011.9986328354. The cubic root of 1156816051 is about 1049.7553628104.

The spelling of 1156816051 in words is "one billion, one hundred fifty-six million, eight hundred sixteen thousand, fifty-one".