1205336461 has 4 divisors (see below), whose sum is σ = 1377527392. Its totient is φ = 1033145532.

The previous prime is 1205336437. The next prime is 1205336467. The reversal of 1205336461 is 1646335021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1646335021 = 409 ⋅4025269.

It is a cyclic number.

It is not a de Polignac number, because 1205336461 - 2⁹ = 1205335949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205336467) 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, 86095455 + ... + 86095468.

It is an arithmetic number, because the mean of its divisors is an integer number (344381848).

Almost surely, 2^1205336461 is an apocalyptic number.

It is an amenable number.

1205336461 is a deficient number, since it is larger than the sum of its proper divisors (172190931).

1205336461 is an equidigital number, since it uses as much as digits as its factorization.

1205336461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172190930.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1205336461 is about 34717.9558874079. The cubic root of 1205336461 is about 1064.2314721138.

The spelling of 1205336461 in words is "one billion, two hundred five million, three hundred thirty-six thousand, four hundred sixty-one".