1333138451 has 2 divisors, whose sum is σ = 1333138452. Its totient is φ = 1333138450.

The previous prime is 1333138427. The next prime is 1333138481. The reversal of 1333138451 is 1548313331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1333138451 - 2²⁶ = 1266029587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1333138421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666569225 + 666569226.

It is an arithmetic number, because the mean of its divisors is an integer number (666569226).

Almost surely, 2^1333138451 is an apocalyptic number.

1333138451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333138451 is an equidigital number, since it uses as much as digits as its factorization.

1333138451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 1333138451 is about 36512.1685332438. The cubic root of 1333138451 is about 1100.5887897448.

The spelling of 1333138451 in words is "one billion, three hundred thirty-three million, one hundred thirty-eight thousand, four hundred fifty-one".