1481138251 has 2 divisors, whose sum is σ = 1481138252. Its totient is φ = 1481138250.

The previous prime is 1481138189. The next prime is 1481138273. The reversal of 1481138251 is 1528311841.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1481138251 - 2¹⁷ = 1481007179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1481138851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740569125 + 740569126.

It is an arithmetic number, because the mean of its divisors is an integer number (740569126).

Almost surely, 2^1481138251 is an apocalyptic number.

1481138251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481138251 is an equidigital number, since it uses as much as digits as its factorization.

1481138251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 34.

The square root of 1481138251 is about 38485.5589929521. The cubic root of 1481138251 is about 1139.8959202713.

The spelling of 1481138251 in words is "one billion, four hundred eighty-one million, one hundred thirty-eight thousand, two hundred fifty-one".