2141569 has 2 divisors, whose sum is σ = 2141570. Its totient is φ = 2141568.

The previous prime is 2141549. The next prime is 2141591. The reversal of 2141569 is 9651412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1904400 + 237169 = 1380^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141569 - 2⁹ = 2141057 is a prime.

It is a super-2 number, since 2×2141569² = 9172635563522, which contains 22 as substring.

2141569 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2141519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070784 + 1070785.

It is an arithmetic number, because the mean of its divisors is an integer number (1070785).

2^2141569 is an apocalyptic number.

It is an amenable number.

2141569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141569 is an equidigital number, since it uses as much as digits as its factorization.

2141569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 2141569 is about 1463.4100587327. The cubic root of 2141569 is about 128.8973604167.

The spelling of 2141569 in words is "two million, one hundred forty-one thousand, five hundred sixty-nine".