1602052181 has 2 divisors, whose sum is σ = 1602052182. Its totient is φ = 1602052180.

The previous prime is 1602052117. The next prime is 1602052201. The reversal of 1602052181 is 1812502061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969076900 + 632975281 = 31130^2 + 25159^2 .

It is a cyclic number.

It is not a de Polignac number, because 1602052181 - 2⁶ = 1602052117 is a prime.

It is a super-2 number, since 2×1602052181² = 5133142381293713522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1602052181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1602051181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801026090 + 801026091.

It is an arithmetic number, because the mean of its divisors is an integer number (801026091).

Almost surely, 2^1602052181 is an apocalyptic number.

It is an amenable number.

1602052181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1602052181 is an equidigital number, since it uses as much as digits as its factorization.

1602052181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1602052181 is about 40025.6440422887. The cubic root of 1602052181 is about 1170.1069327838.

The spelling of 1602052181 in words is "one billion, six hundred two million, fifty-two thousand, one hundred eighty-one".