481261187 has 16 divisors (see below), whose sum is σ = 533581440. Its totient is φ = 430401600.

The previous prime is 481261103. The next prime is 481261189. The reversal of 481261187 is 781162184.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 481261187 - 2⁸ = 481260931 is a prime.

It is a super-2 number, since 2×481261187² = 463224660225297938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481261187.

It is not an unprimeable number, because it can be changed into a prime (481261189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593012 + ... + 593822.

It is an arithmetic number, because the mean of its divisors is an integer number (33348840).

Almost surely, 2^481261187 is an apocalyptic number.

481261187 is a deficient number, since it is larger than the sum of its proper divisors (52320253).

481261187 is a wasteful number, since it uses less digits than its factorization.

481261187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634.

The product of its digits is 21504, while the sum is 38.

The square root of 481261187 is about 21937.6659423923. The cubic root of 481261187 is about 783.6586757615.

The spelling of 481261187 in words is "four hundred eighty-one million, two hundred sixty-one thousand, one hundred eighty-seven".