1155530501 has 8 divisors (see below), whose sum is σ = 1162517664. Its totient is φ = 1148564880.

The previous prime is 1155530479. The next prime is 1155530507. The reversal of 1155530501 is 1050355511.

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 1155530501 - 2⁶ = 1155530437 is a prime.

It is a super-2 number, since 2×1155530501² = 2670501477482622002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155530507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109466 + ... + 119556.

It is an arithmetic number, because the mean of its divisors is an integer number (145314708).

Almost surely, 2^1155530501 is an apocalyptic number.

It is an amenable number.

1155530501 is a deficient number, since it is larger than the sum of its proper divisors (6987163).

1155530501 is a wasteful number, since it uses less digits than its factorization.

1155530501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771.

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

The square root of 1155530501 is about 33993.0949017591. The cubic root of 1155530501 is about 1049.3663602514.

The spelling of 1155530501 in words is "one billion, one hundred fifty-five million, five hundred thirty thousand, five hundred one".