1201205481 has 32 divisors (see below), whose sum is σ = 1896653568. Its totient is φ = 661893120.

The previous prime is 1201205459. The next prime is 1201205483. The reversal of 1201205481 is 1845021021.

1201205481 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1201205481 - 2⁷ = 1201205353 is a prime.

It is a super-2 number, since 2×1201205481² = 2885789215168882722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201205483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80961 + ... + 94641.

It is an arithmetic number, because the mean of its divisors is an integer number (59270424).

Almost surely, 2^1201205481 is an apocalyptic number.

It is an amenable number.

1201205481 is a deficient number, since it is larger than the sum of its proper divisors (695448087).

1201205481 is a wasteful number, since it uses less digits than its factorization.

1201205481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13841.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 1201205481 is about 34658.4114032943. The cubic root of 1201205481 is about 1063.0142875156.

The spelling of 1201205481 in words is "one billion, two hundred one million, two hundred five thousand, four hundred eighty-one".