1405541485 has 4 divisors (see below), whose sum is σ = 1686649788. Its totient is φ = 1124433184.

The previous prime is 1405541479. The next prime is 1405541497. The reversal of 1405541485 is 5841455041.

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 988850916 + 416690569 = 31446^2 + 20413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405541485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140554144 + ... + 140554153.

It is an arithmetic number, because the mean of its divisors is an integer number (421662447).

Almost surely, 2^1405541485 is an apocalyptic number.

It is an amenable number.

1405541485 is a deficient number, since it is larger than the sum of its proper divisors (281108303).

1405541485 is an equidigital number, since it uses as much as digits as its factorization.

1405541485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281108302.

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 1405541485 is about 37490.5519431229. The cubic root of 1405541485 is about 1120.1629984390.

The spelling of 1405541485 in words is "one billion, four hundred five million, five hundred forty-one thousand, four hundred eighty-five".