1405063145 has 8 divisors (see below), whose sum is σ = 1686359304. Its totient is φ = 1123861504.

The previous prime is 1405063109. The next prime is 1405063147. The reversal of 1405063145 is 5413605041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 236175424 + 1168887721 = 15368^2 + 34189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1405063145 - 2²⁴ = 1388285929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405063147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14747 + ... + 55023.

It is an arithmetic number, because the mean of its divisors is an integer number (210794913).

Almost surely, 2^1405063145 is an apocalyptic number.

It is an amenable number.

1405063145 is a deficient number, since it is larger than the sum of its proper divisors (281296159).

1405063145 is an equidigital number, since it uses as much as digits as its factorization.

1405063145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47259.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1405063145 is about 37484.1719262944. The cubic root of 1405063145 is about 1120.0359111041.

Adding to 1405063145 its reverse (5413605041), we get a palindrome (6818668186).

The spelling of 1405063145 in words is "one billion, four hundred five million, sixty-three thousand, one hundred forty-five".