240132569 has 2 divisors, whose sum is σ = 240132570. Its totient is φ = 240132568.

The previous prime is 240132533. The next prime is 240132589. The reversal of 240132569 is 965231042.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206353225 + 33779344 = 14365^2 + 5812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240132569 is a prime.

It is a super-2 number, since 2×240132569² = 115327301389079522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240132589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120066284 + 120066285.

It is an arithmetic number, because the mean of its divisors is an integer number (120066285).

Almost surely, 2^240132569 is an apocalyptic number.

It is an amenable number.

240132569 is a deficient number, since it is larger than the sum of its proper divisors (1).

240132569 is an equidigital number, since it uses as much as digits as its factorization.

240132569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 240132569 is about 15496.2114402198. The cubic root of 240132569 is about 621.5609031032.

The spelling of 240132569 in words is "two hundred forty million, one hundred thirty-two thousand, five hundred sixty-nine".