1204272081 has 6 divisors (see below), whose sum is σ = 1739504130. Its totient is φ = 802848048.

The previous prime is 1204272073. The next prime is 1204272089. The reversal of 1204272081 is 1802724021.

It is an interprime number because it is at equal distance from previous prime (1204272073) and next prime (1204272089).

It can be written as a sum of positive squares in only one way, i.e., 921729600 + 282542481 = 30360^2 + 16809^2 .

It is not a de Polignac number, because 1204272081 - 2³ = 1204272073 is a prime.

It is a super-2 number, since 2×1204272081² = 2900542490152141122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1204272089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66903996 + ... + 66904013.

It is an arithmetic number, because the mean of its divisors is an integer number (289917355).

Almost surely, 2^1204272081 is an apocalyptic number.

It is an amenable number.

1204272081 is a deficient number, since it is larger than the sum of its proper divisors (535232049).

1204272081 is a wasteful number, since it uses less digits than its factorization.

1204272081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133808015 (or 133808012 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1204272081 is about 34702.6235463545. The cubic root of 1204272081 is about 1063.9181210783.

The spelling of 1204272081 in words is "one billion, two hundred four million, two hundred seventy-two thousand, eighty-one".