1421161194 has 32 divisors (see below), whose sum is σ = 2932105536. Its totient is φ = 458870400.

The previous prime is 1421161177. The next prime is 1421161199. The reversal of 1421161194 is 4911611241.

It is not an unprimeable number, because it can be changed into a prime (1421161199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36294 + ... + 64494.

It is an arithmetic number, because the mean of its divisors is an integer number (91628298).

Almost surely, 2^1421161194 is an apocalyptic number.

1421161194 is an abundant number, since it is smaller than the sum of its proper divisors (1510944342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421161194 is a wasteful number, since it uses less digits than its factorization.

1421161194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28470.

The product of its digits is 1728, while the sum is 30.

The square root of 1421161194 is about 37698.2916589068. The cubic root of 1421161194 is about 1124.2971594135.

The spelling of 1421161194 in words is "one billion, four hundred twenty-one million, one hundred sixty-one thousand, one hundred ninety-four".