141664385 has 4 divisors (see below), whose sum is σ = 169997268. Its totient is φ = 113331504.

The previous prime is 141664381. The next prime is 141664409. The reversal of 141664385 is 583466141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583466141 = 6197 ⋅94153.

It can be written as a sum of positive squares in 2 ways, for example, as 17297281 + 124367104 = 4159^2 + 11152^2 .

It is a cyclic number.

It is not a de Polignac number, because 141664385 - 2² = 141664381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141664381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14166434 + ... + 14166443.

It is an arithmetic number, because the mean of its divisors is an integer number (42499317).

Almost surely, 2^141664385 is an apocalyptic number.

It is an amenable number.

141664385 is a deficient number, since it is larger than the sum of its proper divisors (28332883).

141664385 is an equidigital number, since it uses as much as digits as its factorization.

141664385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28332882.

The product of its digits is 69120, while the sum is 38.

The square root of 141664385 is about 11902.2848646804. The cubic root of 141664385 is about 521.2990020392.

The spelling of 141664385 in words is "one hundred forty-one million, six hundred sixty-four thousand, three hundred eighty-five".