1320536194 has 4 divisors (see below), whose sum is σ = 1980804294. Its totient is φ = 660268096.

The previous prime is 1320536137. The next prime is 1320536197. The reversal of 1320536194 is 4916350231.

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., 1014741025 + 305795169 = 31855^2 + 17487^2 .

It is not an unprimeable number, because it can be changed into a prime (1320536197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330134047 + ... + 330134050.

Almost surely, 2^1320536194 is an apocalyptic number.

1320536194 is a deficient number, since it is larger than the sum of its proper divisors (660268100).

1320536194 is an equidigital number, since it uses as much as digits as its factorization.

1320536194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660268099.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 1320536194 is about 36339.1826270212. The cubic root of 1320536194 is about 1097.1098217111.

The spelling of 1320536194 in words is "one billion, three hundred twenty million, five hundred thirty-six thousand, one hundred ninety-four".