141864649 has 4 divisors (see below), whose sum is σ = 146440960. Its totient is φ = 137288340.

The previous prime is 141864647. The next prime is 141864683. The reversal of 141864649 is 946468141.

141864649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141864649 - 2¹ = 141864647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141864641) 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, 2288109 + ... + 2288170.

It is an arithmetic number, because the mean of its divisors is an integer number (36610240).

Almost surely, 2^141864649 is an apocalyptic number.

It is an amenable number.

141864649 is a deficient number, since it is larger than the sum of its proper divisors (4576311).

141864649 is an equidigital number, since it uses as much as digits as its factorization.

141864649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576310.

The product of its digits is 165888, while the sum is 43.

The square root of 141864649 is about 11910.6947320465. The cubic root of 141864649 is about 521.5445313304.

The spelling of 141864649 in words is "one hundred forty-one million, eight hundred sixty-four thousand, six hundred forty-nine".