1121501530 has 8 divisors (see below), whose sum is σ = 2018702772. Its totient is φ = 448600608.

The previous prime is 1121501501. The next prime is 1121501569. The reversal of 1121501530 is 351051211.

It can be written as a sum of positive squares in 2 ways, for example, as 1026497521 + 95004009 = 32039^2 + 9747^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1121501498 and 1121501507.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 56075067 + ... + 56075086.

Almost surely, 2^1121501530 is an apocalyptic number.

1121501530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121501530 is a deficient number, since it is larger than the sum of its proper divisors (897201242).

1121501530 is a wasteful number, since it uses less digits than its factorization.

1121501530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112150160.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1121501530 is about 33488.8269427282. The cubic root of 1121501530 is about 1038.9627015636.

Adding to 1121501530 its reverse (351051211), we get a palindrome (1472552741).

The spelling of 1121501530 in words is "one billion, one hundred twenty-one million, five hundred one thousand, five hundred thirty".