1190821315 has 8 divisors (see below), whose sum is σ = 1431721008. Its totient is φ = 950833440.

The previous prime is 1190821271. The next prime is 1190821327. The reversal of 1190821315 is 5131280911.

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

It is not a de Polignac number, because 1190821315 - 2¹⁹ = 1190297027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 225076 + ... + 230305.

It is an arithmetic number, because the mean of its divisors is an integer number (178965126).

Almost surely, 2^1190821315 is an apocalyptic number.

1190821315 is a deficient number, since it is larger than the sum of its proper divisors (240899693).

1190821315 is an equidigital number, since it uses as much as digits as its factorization.

1190821315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455909.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 1190821315 is about 34508.2789341920. The cubic root of 1190821315 is about 1059.9422405338.

The spelling of 1190821315 in words is "one billion, one hundred ninety million, eight hundred twenty-one thousand, three hundred fifteen".