141638389 has 4 divisors (see below), whose sum is σ = 143431360. Its totient is φ = 139845420.

The previous prime is 141638383. The next prime is 141638417. The reversal of 141638389 is 983836141.

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, and also an emirpimes, since its reverse is a distinct semiprime: 983836141 = 8669 ⋅113489.

It is a cyclic number.

It is not a de Polignac number, because 141638389 - 2¹³ = 141630197 is a prime.

It is a super-2 number, since 2×141638389² = 40122866477030642, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141638383) 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, 896367 + ... + 896524.

It is an arithmetic number, because the mean of its divisors is an integer number (35857840).

Almost surely, 2^141638389 is an apocalyptic number.

It is an amenable number.

141638389 is a deficient number, since it is larger than the sum of its proper divisors (1792971).

141638389 is an equidigital number, since it uses as much as digits as its factorization.

141638389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792970.

The product of its digits is 124416, while the sum is 43.

The square root of 141638389 is about 11901.1927553502. The cubic root of 141638389 is about 521.2671132483.

The spelling of 141638389 in words is "one hundred forty-one million, six hundred thirty-eight thousand, three hundred eighty-nine".