1204164194 has 4 divisors (see below), whose sum is σ = 1806246294. Its totient is φ = 602082096.

The previous prime is 1204164193. The next prime is 1204164229. The reversal of 1204164194 is 4914614021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4914614021 = 29 ⋅169469449.

It can be written as a sum of positive squares in only one way, i.e., 1201523569 + 2640625 = 34663^2 + 1625^2 .

It is a super-2 number, since 2×1204164194² = 2900022812223339272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1204164194.

It is not an unprimeable number, because it can be changed into a prime (1204164193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301041047 + ... + 301041050.

Almost surely, 2^1204164194 is an apocalyptic number.

1204164194 is a deficient number, since it is larger than the sum of its proper divisors (602082100).

1204164194 is an equidigital number, since it uses as much as digits as its factorization.

1204164194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602082099.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1204164194 is about 34701.0690613416. The cubic root of 1204164194 is about 1063.8863490882.

The spelling of 1204164194 in words is "one billion, two hundred four million, one hundred sixty-four thousand, one hundred ninety-four".