1545433349 has 2 divisors, whose sum is σ = 1545433350. Its totient is φ = 1545433348.

The previous prime is 1545433339. The next prime is 1545433363. The reversal of 1545433349 is 9433345451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1540562500 + 4870849 = 39250^2 + 2207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1545433349 - 2⁴ = 1545433333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545433339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772716674 + 772716675.

It is an arithmetic number, because the mean of its divisors is an integer number (772716675).

Almost surely, 2^1545433349 is an apocalyptic number.

It is an amenable number.

1545433349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545433349 is an equidigital number, since it uses as much as digits as its factorization.

1545433349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 41.

The square root of 1545433349 is about 39312.0000635938. Note that the first 4 decimals coincide. The cubic root of 1545433349 is about 1156.1568586711.

The spelling of 1545433349 in words is "one billion, five hundred forty-five million, four hundred thirty-three thousand, three hundred forty-nine".