1605411152 has 20 divisors (see below), whose sum is σ = 3122595156. Its totient is φ = 799580160.

The previous prime is 1605411107. The next prime is 1605411161. The reversal of 1605411152 is 2511145061.

It can be written as a sum of positive squares in 2 ways, for example, as 973190416 + 632220736 = 31196^2 + 25144^2 .

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, 191099 + ... + 199322.

Almost surely, 2^1605411152 is an apocalyptic number.

It is an amenable number.

1605411152 is a deficient number, since it is larger than the sum of its proper divisors (1517184004).

1605411152 is a wasteful number, since it uses less digits than its factorization.

1605411152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390686 (or 390680 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1605411152 is about 40067.5823078957. The cubic root of 1605411152 is about 1170.9241370366.

The spelling of 1605411152 in words is "one billion, six hundred five million, four hundred eleven thousand, one hundred fifty-two".