132639569 has 2 divisors, whose sum is σ = 132639570. Its totient is φ = 132639568.

The previous prime is 132639557. The next prime is 132639581. The reversal of 132639569 is 965936231.

It is a balanced prime because it is at equal distance from previous prime (132639557) and next prime (132639581).

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 65399569 = 8200^2 + 8087^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132639569 is a prime.

It is a super-2 number, since 2×132639569² = 35186510529011522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (132639869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66319784 + 66319785.

It is an arithmetic number, because the mean of its divisors is an integer number (66319785).

Almost surely, 2^132639569 is an apocalyptic number.

It is an amenable number.

132639569 is a deficient number, since it is larger than the sum of its proper divisors (1).

132639569 is an equidigital number, since it uses as much as digits as its factorization.

132639569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 44.

The square root of 132639569 is about 11516.9253275343. The cubic root of 132639569 is about 509.9853500854.

The spelling of 132639569 in words is "one hundred thirty-two million, six hundred thirty-nine thousand, five hundred sixty-nine".