1204192481 has 4 divisors (see below), whose sum is σ = 1204275732. Its totient is φ = 1204109232.

The previous prime is 1204192463. The next prime is 1204192487. The reversal of 1204192481 is 1842914021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1842914021 = 13 ⋅141762617.

It can be written as a sum of positive squares in 2 ways, for example, as 112550881 + 1091641600 = 10609^2 + 33040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204192481 - 2¹⁴ = 1204176097 is a prime.

It is a super-2 number, since 2×1204192481² = 2900159062593870722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204192487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13670 + ... + 50943.

It is an arithmetic number, because the mean of its divisors is an integer number (301068933).

Almost surely, 2^1204192481 is an apocalyptic number.

It is an amenable number.

1204192481 is a deficient number, since it is larger than the sum of its proper divisors (83251).

1204192481 is an equidigital number, since it uses as much as digits as its factorization.

1204192481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83250.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1204192481 is about 34701.4766400509. The cubic root of 1204192481 is about 1063.8946796015.

The spelling of 1204192481 in words is "one billion, two hundred four million, one hundred ninety-two thousand, four hundred eighty-one".