1481262381 has 6 divisors (see below), whose sum is σ = 2139601230. Its totient is φ = 987508248.

The previous prime is 1481262373. The next prime is 1481262383. The reversal of 1481262381 is 1832621841.

1481262381 is a `hidden beast` number, since 14 + 8 + 1 + 262 + 381 = 666.

It can be written as a sum of positive squares in only one way, i.e., 967832100 + 513430281 = 31110^2 + 22659^2 .

It is not a de Polignac number, because 1481262381 - 2³ = 1481262373 is a prime.

It is a super-2 number, since 2×1481262381² = 4388276482731578322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481262383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82292346 + ... + 82292363.

It is an arithmetic number, because the mean of its divisors is an integer number (356600205).

Almost surely, 2^1481262381 is an apocalyptic number.

It is an amenable number.

1481262381 is a deficient number, since it is larger than the sum of its proper divisors (658338849).

1481262381 is a wasteful number, since it uses less digits than its factorization.

1481262381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164584715 (or 164584712 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1481262381 is about 38487.1716419900. The cubic root of 1481262381 is about 1139.9277631975.

The spelling of 1481262381 in words is "one billion, four hundred eighty-one million, two hundred sixty-two thousand, three hundred eighty-one".