1481899477 has 2 divisors, whose sum is σ = 1481899478. Its totient is φ = 1481899476.

The previous prime is 1481899427. The next prime is 1481899481. The reversal of 1481899477 is 7749981841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774286276 + 707613201 = 27826^2 + 26601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1481899477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1481899427) 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 as a sum of consecutive naturals, namely, 740949738 + 740949739.

It is an arithmetic number, because the mean of its divisors is an integer number (740949739).

Almost surely, 2^1481899477 is an apocalyptic number.

It is an amenable number.

1481899477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481899477 is an equidigital number, since it uses as much as digits as its factorization.

1481899477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 58.

The square root of 1481899477 is about 38495.4474840857. The cubic root of 1481899477 is about 1140.0911687117.

The spelling of 1481899477 in words is "one billion, four hundred eighty-one million, eight hundred ninety-nine thousand, four hundred seventy-seven".