1164005642 has 4 divisors (see below), whose sum is σ = 1746008466. Its totient is φ = 582002820.

The previous prime is 1164005603. The next prime is 1164005677. The reversal of 1164005642 is 2465004611.

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

It can be written as a sum of positive squares in only one way, i.e., 1157292361 + 6713281 = 34019^2 + 2591^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291001409 + ... + 291001412.

Almost surely, 2^1164005642 is an apocalyptic number.

1164005642 is a deficient number, since it is larger than the sum of its proper divisors (582002824).

1164005642 is an equidigital number, since it uses as much as digits as its factorization.

1164005642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582002823.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1164005642 is about 34117.5269033381. The cubic root of 1164005642 is about 1051.9256098997.

The spelling of 1164005642 in words is "one billion, one hundred sixty-four million, five thousand, six hundred forty-two".