1409545505 has 4 divisors (see below), whose sum is σ = 1691454612. Its totient is φ = 1127636400.

The previous prime is 1409545499. The next prime is 1409545517. The reversal of 1409545505 is 5055459041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 842915089 + 566630416 = 29033^2 + 23804^2 .

It is not a de Polignac number, because 1409545505 - 2¹² = 1409541409 is a prime.

It is a super-3 number, since 3×1409545505³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140954546 + ... + 140954555.

It is an arithmetic number, because the mean of its divisors is an integer number (422863653).

Almost surely, 2^1409545505 is an apocalyptic number.

It is an amenable number.

1409545505 is a deficient number, since it is larger than the sum of its proper divisors (281909107).

1409545505 is an equidigital number, since it uses as much as digits as its factorization.

1409545505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281909106.

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 1409545505 is about 37543.9143537272. The cubic root of 1409545505 is about 1121.2256737645.

The spelling of 1409545505 in words is "one billion, four hundred nine million, five hundred forty-five thousand, five hundred five".