141956665 has 4 divisors (see below), whose sum is σ = 170348004. Its totient is φ = 113565328.

The previous prime is 141956651. The next prime is 141956723. The reversal of 141956665 is 566659141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93180409 + 48776256 = 9653^2 + 6984^2 .

It is a cyclic number.

It is not a de Polignac number, because 141956665 - 2⁹ = 141956153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14195662 + ... + 14195671.

It is an arithmetic number, because the mean of its divisors is an integer number (42587001).

Almost surely, 2^141956665 is an apocalyptic number.

It is an amenable number.

141956665 is a deficient number, since it is larger than the sum of its proper divisors (28391339).

141956665 is an equidigital number, since it uses as much as digits as its factorization.

141956665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28391338.

The product of its digits is 194400, while the sum is 43.

The square root of 141956665 is about 11914.5568528586. The cubic root of 141956665 is about 521.6572680595.

The spelling of 141956665 in words is "one hundred forty-one million, nine hundred fifty-six thousand, six hundred sixty-five".