1602081 has 12 divisors (see below), whose sum is σ = 2492308. Its totient is φ = 985824.

The previous prime is 1602079. The next prime is 1602091. The reversal of 1602081 is 1802061.

It can be written as a sum of positive squares in 2 ways, for example, as 1083681 + 518400 = 1041^2 + 720^2 .

It is not a de Polignac number, because 1602081 - 2¹ = 1602079 is a prime.

It is a super-2 number, since 2×1602081² = 5133327061122, which contains 22 as substring.

It is an Ulam number.

1602081 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6730 + ... + 6963.

2^1602081 is an apocalyptic number.

It is an amenable number.

1602081 is a deficient number, since it is larger than the sum of its proper divisors (890227).

1602081 is a wasteful number, since it uses less digits than its factorization.

1602081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712 (or 13709 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1602081 is about 1265.7333842480. The cubic root of 1602081 is about 117.0113949016.

The spelling of 1602081 in words is "one million, six hundred two thousand, eighty-one".