1219790533 has 16 divisors (see below), whose sum is σ = 1379863296. Its totient is φ = 1069833600.

The previous prime is 1219790471. The next prime is 1219790567. The reversal of 1219790533 is 3350979121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1219790533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219790233) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31641 + ... + 58657.

It is an arithmetic number, because the mean of its divisors is an integer number (86241456).

Almost surely, 2^1219790533 is an apocalyptic number.

1219790533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1219790533 is a deficient number, since it is larger than the sum of its proper divisors (160072763).

1219790533 is a wasteful number, since it uses less digits than its factorization.

1219790533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27204.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 1219790533 is about 34925.4997530458. The cubic root of 1219790533 is about 1068.4685731741.

The spelling of 1219790533 in words is "one billion, two hundred nineteen million, seven hundred ninety thousand, five hundred thirty-three".