1485611905 has 8 divisors (see below), whose sum is σ = 1783156392. Its totient is φ = 1188208128.

The previous prime is 1485611899. The next prime is 1485611909. The reversal of 1485611905 is 5091165841.

It can be written as a sum of positive squares in 4 ways, for example, as 108014449 + 1377597456 = 10393^2 + 37116^2 .

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 1485611905 - 2²⁵ = 1452057473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1485611909) 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, 10354 + ... + 55483.

It is an arithmetic number, because the mean of its divisors is an integer number (222894549).

Almost surely, 2^1485611905 is an apocalyptic number.

It is an amenable number.

1485611905 is a deficient number, since it is larger than the sum of its proper divisors (297544487).

1485611905 is an equidigital number, since it uses as much as digits as its factorization.

1485611905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70355.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 1485611905 is about 38543.6363748933. The cubic root of 1485611905 is about 1141.0424201189.

The spelling of 1485611905 in words is "one billion, four hundred eighty-five million, six hundred eleven thousand, nine hundred five".