1155500351 has 4 divisors (see below), whose sum is σ = 1157430000. Its totient is φ = 1153570704.

The previous prime is 1155500341. The next prime is 1155500377. The reversal of 1155500351 is 1530055511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1155500351 - 2¹⁰ = 1155499327 is a prime.

It is a super-2 number, since 2×1155500351² = 2670362122322246402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155500351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155500321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963926 + ... + 965123.

It is an arithmetic number, because the mean of its divisors is an integer number (289357500).

Almost surely, 2^1155500351 is an apocalyptic number.

1155500351 is a deficient number, since it is larger than the sum of its proper divisors (1929649).

1155500351 is an equidigital number, since it uses as much as digits as its factorization.

1155500351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929648.

The product of its (nonzero) digits is 1875, while the sum is 26.

The square root of 1155500351 is about 33992.6514264480. The cubic root of 1155500351 is about 1049.3572335138.

Adding to 1155500351 its reverse (1530055511), we get a palindrome (2685555862).

The spelling of 1155500351 in words is "one billion, one hundred fifty-five million, five hundred thousand, three hundred fifty-one".