141638929 has 4 divisors (see below), whose sum is σ = 146523060. Its totient is φ = 136754800.

The previous prime is 141638927. The next prime is 141638933. The reversal of 141638929 is 929836141.

It is a happy number.

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 122058304 + 19580625 = 11048^2 + 4425^2 .

It is a cyclic number.

It is not a de Polignac number, because 141638929 - 2¹ = 141638927 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141638927) 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, 2442022 + ... + 2442079.

It is an arithmetic number, because the mean of its divisors is an integer number (36630765).

Almost surely, 2^141638929 is an apocalyptic number.

It is an amenable number.

141638929 is a deficient number, since it is larger than the sum of its proper divisors (4884131).

141638929 is an equidigital number, since it uses as much as digits as its factorization.

141638929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884130.

The product of its digits is 93312, while the sum is 43.

The square root of 141638929 is about 11901.2154421303. The cubic root of 141638929 is about 521.2677756955.

It can be divided in two parts, 1416389 and 29, that multiplied together give a square (41075281 = 6409²).

The spelling of 141638929 in words is "one hundred forty-one million, six hundred thirty-eight thousand, nine hundred twenty-nine".